Tootfinder

On string tension and initial temperature from transverse momentum spectra of heavy quarkonia in proton-proton collisions at the LHC
Peng-Cheng Zhang, Hailong Zhu, Fu-Hu Liu, Khusniddin K. Olimov
https://arxiv.org/abs/2506.10702

On string tension and initial temperature from transverse momentum spectra of heavy quarkonia in proton-proton collisions at the LHC
The string tension ($κ$) in the Schwinger mechanism and the effective temperature ($T$) in Bose-Einstein statistics are extracted from the transverse momentum ($p_T$) spectra of heavy quarkonia produced in proton-proton (p+p) collisions at the Large Hadron Collider (LHC). Here, $T$ derived from the heavy quarkonium $p_T$ spectra also represents the initial temperature of the collision system, as transverse flow has not yet formed when heavy quarkonia are produced. The related parameters ($κ$ …

Patient-Specific Deep Reinforcement Learning for Automatic Replanning in Head-and-Neck Cancer Proton Therapy
Malvern Madondo, Yuan Shao, Yingzi Liu, Jun Zhou, Xiaofeng Yang, Zhen Tian
https://arxiv.org/abs/2506.10073

Patient-Specific Deep Reinforcement Learning for Automatic Replanning in Head-and-Neck Cancer Proton Therapy
Anatomical changes during intensity-modulated proton therapy (IMPT) for head-and-neck cancer (HNC) can shift Bragg peaks, risking tumor underdosing and organ-at-risk overdosing. As a result, treatment replanning is often required to maintain clinically acceptable treatment quality. However, current manual replanning processes are resource-intensive and time-consuming. We propose a patient-specific deep reinforcement learning (DRL) framework for automated IMPT replanning, with a reward-shaping m…

Cool @… und @… werden im @… Podcast erwähnt.
Leider zu einem düsteren Thema:

This https://arxiv.org/abs/2505.06732 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepe…

Particle Identification with Deep Neural Networks Across Collision Energies in Simulated Proton-Proton Collisions
This study demonstrates a proof-of-concept application of a deep neural network for particle identification in simulated high transverse momentum proton-proton collisions, with a focus on evaluating model performance under controlled conditions. A model trained on simulated Large Hadron Collider (LHC) proton-proton collisions at $\sqrt{s} = 13\,\mathrm{TeV}$ is used to classify nine particle species based on seven kinematic-level features. The model is then tested on simulated high transverse m…

Probing Non-Thermal Processes in Stellar Flares on AU Mic
Adalyn Gibson, Adam F. Kowalski, Adina D. Feinstein
https://arxiv.org/abs/2506.10201 https://

Probing Non-Thermal Processes in Stellar Flares on AU Mic
The role of non-thermal proton energy transportation during solar and stellar flares is largely unknown; a better understanding of this physical process will allow us to rectify longstanding deficiencies in flare models. One way to detect the presence of non-thermal protons during flares is through the Orrall-Zirker (OZ) effect whereby an enhanced red wing appears in hydrogen emission lines (e.g., Lyman-$α$ at 1215.67 Angstrom). We analyze archival Hubble Space Telescope/Cosmic Origins Spectro…

Matter symmetries in supersymmetric standard models from non-invertible selection rules
Tatsuo Kobayashi, Hironobu Mita, Hajime Otsuka, Riku Sakuma
https://arxiv.org/abs/2506.10241

Matter symmetries in supersymmetric standard models from non-invertible selection rules
We discuss phenomenological implications of non-invertible selection rules in the framework of the supersymmetric standard model. We find that a remnant $\mathbb{Z}_2$ symmetry of fusion algebras which holds at all-loop order plays the role of $R$-parity, forbidding baryon and lepton violating operators. In addition, a combination of Standard Model gauge symmetry and the non-invertible selection rules lead to baryon triality and proton hexality that can protect the proton from decay. In general…

Search for top squarks in final states with many light-flavor jets and 0, 1, or 2 charged leptons in proton-proton collisions at $\sqrt{s}$ = 13 TeV
CMS Collaboration
https://arxiv.org/abs/2506.08825

Search for top squarks in final states with many light-flavor jets and 0, 1, or 2 charged leptons in proton-proton collisions at $\sqrt{s}$ = 13 TeV
Several new physics models including versions of supersymmetry (SUSY) characterized by $R$-parity violation (RPV) or with additional hidden sectors predict the production of events with top quarks, low missing transverse momentum, and many additional quarks or gluons. The results of a search for top squarks decaying to two top quarks and six additional light-flavor quarks or gluons are reported. The search employs a novel machine learning method for background estimation from control samples in…

Schr\"odinger equation with Pauli-Fierz Hamiltonian and double well potential as model of vibrationally enhanced tunneling for proton transfer in hydrogen bond
A. E. Sitnitsky
https://arxiv.org/abs/2506.07733

Schrödinger equation with Pauli-Fierz Hamiltonian and double well potential as model of vibrationally enhanced tunneling for proton transfer in hydrogen bond
A solution of the two-dimensional Schrödinger equation with Pauli-Fierz Hamiltonian and trigonometric double-well potential is obtained within the framework of the first-order of adiabatic approximation. The case of vibrational strong coupling is considered which is pertinent for polariton chemistry and (presumably) for enzymatic hydrogen transfer. We exemplify the application of the solution by calculating the proton transfer rate constant in the hydrogen bond of the Zundel ion ${\rm{H_5O_2^{…

Investigation of $^{31}$P levels near the proton threshold by Nuclear Resonance Fluorescence and the impact on the $^{30}$Si(p,$\gamma$)$^{31}$P thermonuclear rate
David Gribble (UNC Chapel Hill, Triangle Universities Nuclear Laboratory), Christian Iliadis (UNC Chapel Hill, Triangle Universities Nuclear Laboratory), Robert V. F. Janssens (UNC Chapel Hill, Triangle Universities Nuclear Laboratory), Udo Friman-Gayer (Duke University, Triangle Universities Nuclear Laboratory), Akaa D. Aya…

Investigation of $^{31}$P levels near the proton threshold by Nuclear Resonance Fluorescence and the impact on the $^{30}$Si(p,$γ$)$^{31}$P thermonuclear rate
We investigated the nuclear structure of $^{31}$P near the proton threshold using Nuclear Resonance Fluorescence (NRF) to refine the properties of key resonances in the $^{30}$Si(p,$γ$)$^{31}$P reaction, which is critical for nucleosynthesis in stellar environments. Excitation energies and spin-parities were determined for several states, including two unobserved resonances at $E_r$ $=$ $18.7$~keV and $E_r$ $=$ $50.5$~keV. The angular correlation analysis enabled the first unambiguous determin…

Models for differential cross section in proton-proton scattering and their implications at ISR and LHC energies
Muhammad Saad Ashraf, Nosheen Akbar, Sarwat Zahra
https://arxiv.org/abs/2506.05532

Models for differential cross section in proton-proton scattering and their implications at ISR and LHC energies
Few composite exponential models for the differential cross section are proposed to analyse the proton-proton ($pp$) elastic scattering at several energies. These proposed models are fitted to the data for $pp$ elastic differential cross section reported at CERN-ISR, LHC, and extrapolated energies of other models. These models have produced important features including dip-bump structure and shrinkage of the forward peak. Position of the dip is also well produced by our models for all the data …

Search for the rare decay D$^0$ $\to$ $\mu^ \mu^-$ in proton-proton collisions at $\sqrt{s}$ = 13.6 TeV
CMS Collaboration
https://arxiv.org/abs/2506.06152 …

Search for the rare decay D$^0$ $\to$ $μ^+μ^-$ in proton-proton collisions at $\sqrt{s}$ = 13.6 TeV
A search for the rare decay D$^0$ $\to$ $μ^+μ^-$ is reported using proton-proton collision events at $\sqrt{s}$ = 13.6 TeV collected by the CMS detector in 2022$-$2023, corresponding to an integrated luminosity of 64.5 fb$^{-1}$. This is the first analysis to use a newly developed inclusive dimuon trigger, expanding the scope of the CMS flavor physics program. The search uses D$^0$ mesons obtained from D$^{*+}$ $\to$ D$^0π^+$ decays. No significant excess is observed. A limit on the branchin…

🇺🇦 #NowPlaying on KEXP's #SonicReducer
Proton Energy Pills:
🎵 Revolution
#ProtonEnergyPills
https://outtaspace.bandcamp.com/album/tombstone-b-w-revolution
https://open.spotify.com/track/6TJwK1bZs1tyTbtfnGiWqp

Proton Gravitational Structure and Mass Decomposition on the Light Front
Sreeraj Nair, Chandan Mondal, Siqi Xu, Xingbo Zhao, James P. Vary
https://arxiv.org/abs/2506.07554

Proton Gravitational Structure and Mass Decomposition on the Light Front
Gravitational form factors (GFFs) of hadrons encode essential information about the internal distributions of mass, spin, pressure, and shear among their quark and gluon constituents. We compute the quark and gluon GFFs of the proton using a fully relativistic, nonperturbative framework based on a light-front quantized Hamiltonian with quantum chromodynamics (QCD) input. This allows us to quantify the impact of a dynamical gluon on the proton's mechanical properties, such as pressure and shear …

A Positivity-Preserving Finite Element Framework for Accurate Dose Computation in Proton Therapy
Ben S. Ashby, Abdalaziz Hamdan, Tristan Pryer
https://arxiv.org/abs/2506.01105

A Positivity-Preserving Finite Element Framework for Accurate Dose Computation in Proton Therapy
We present a stabilised finite element method for modelling proton transport in tissue, incorporating both inelastic energy loss and elastic angular scattering. A key innovation is a positivity-preserving formulation that guarantees non-negative fluence and dose, even on coarse meshes. This enables reliable computation of clinically relevant quantities for treatment planning. We derive a priori error estimates demonstrating optimal convergence rates and validate the method through numerical ben…

LHAASO Protons versus LHAASO Diffuse Gamma Rays: A Consistency Check
Luis Enrique Espinosa Castro, Francesco Lorenzo Villante, Vittoria Vecchiotti, Carmelo Evoli, Giulia Pagliaroli
https://arxiv.org/abs/2506.06593

LHAASO Protons versus LHAASO Diffuse Gamma Rays: A Consistency Check
We perform the first direct consistency check between the recently measured proton spectrum at the knee by LHAASO and the collaboration's own high-precision mapping of Galactic diffuse gamma-ray emission. By modeling the hadronic gamma-ray production using the updated cosmic-ray spectra, gas templates and cross-section models, we show that the predicted gamma-ray flux robustly overshoots the LHAASO data in both inner and lateral Galactic regions. This persistent mismatch in both normalization a…

This https://arxiv.org/abs/2506.03072 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepe…

Three-pion Bose-Einstein correlations measured in proton-proton collisions
A study on the Bose-Einstein correlations for triplets of same-sign pions is presented. The analysis is performed using proton-proton collisions at a centre-of-mass energy of $\sqrt{s}$ = 7 TeV, recorded by the LHCb experiment, corresponding to an integrated luminosity of 1.0 fb$^{-1}$. For the first time, the results are interpreted in the core-halo model. The parameters of the model are determined in regions of charged-particle multiplicity. This measurement provides insight into the nature o…

The influence of nuclear short range correlations on sub-threshold particle production in proton-nucleus collisions
Tom Reichert, J\"org Aichelin
https://arxiv.org/abs/2506.03962

The influence of nuclear short range correlations on sub-threshold particle production in proton-nucleus collisions
The apparent production of (multi-)strange baryons and mesons at sub-threshold energies in proton-heavy ion collisions is a consequence of short range correlations (SRC), which have recently been observed in lepton-nucleus scattering. They may enhance the available center of mass energy of individual nucleon-nucleon collisions and allow, therefore, for sub-threshold particle production in proton-nucleus collisions. Calculations demonstrate that SRC enhance the probability for particle productio…

Universality of scaling entropy in charged hadron multiplicity distributions at the LHC
L. S. Moriggi, F. S. Navarra, M. V. T. Machado
https://arxiv.org/abs/2506.09899

Universality of scaling entropy in charged hadron multiplicity distributions at the LHC
In this work, we investigate the scaling behavior of the entropy associated with the charged hadron multiplicity distribution P(N) in proton-proton collisions at the LHC. We show that the growth of this entropic indicator as a function of the Bjorken x variable exhibits a universal behavior, consistent with observations from deep inelastic scattering (DIS). This universality suggests that the entropy scaling is a property of the initial state and reflects the diffusive nature of gluon dynamics …

This https://arxiv.org/abs/2503.03913 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qbi…

Proton Flows, Proton Gradients and Subcellular Architecture in Biological Energy Conversion
Hydrogen cations, or protons, provide the medium by which energy is stored and converted in biological systems. Such pre-eminence relies on the interplay between interfacial and bulk chemical transformations, according to mechanisms that are shared by organisms in all phyla of life. The present work provides an introduction to the fundamental aspects of biological energy management by focusing on the relationship between vectorial proton flows and the geometry of energy producing organelles in …

Replaced article(s) found for hep-ex. https://arxiv.org/list/hep-ex/new/
[1/1]:
Search for excited tau leptons in the $\tau\tau\gamma$ final state in proton-proton collisions at...

Thanks to @… for finding this needle to getting the Charlie Rudder Pedals working! I've updated the blog as well to hopefully make it a bit easier to track down.
https://

Heavy Quark State Production via p-p and O-O Collisions
Leonard S. Kisslinger, Debasish Das
https://arxiv.org/abs/2506.09484 https://…

Heavy Quark State Production via p-p and O-O Collisions
Here we have considered $J/Ψ$ is a normal charmonium meson, while $Ψ(2S)$ is a mixed hybrid charmonium meson. Similarly $Υ(1S)$ and$Υ(2S)$ are normal upsilon mesons, while $Υ(3S)$ is a mixed hybrid upsilon meson. We discuss the differential rapidity cross sections for $J/Ψ$, $Ψ(2S)$, $Υ(1S)$, $Υ(2S)$, $Υ(3S)$ production via p-p, and O-O collisions at proton-proton energy $\equiv \sqrt{s_{pp}}$= 5.44 TeV. The rapidity taken for the present study goes from y=-1 to 1.

Prediction of the SVOM MXT camera end of life spectral performance based onproton irradiation results
Clara Plasse, Diego G\"otz, Aline Meuris, Miguel Fernandez Moita, Philippe Ferrando, Leo Favier, Francesco Ceraudo
#toXiv_bot_toot

This https://arxiv.org/abs/2404.11135 has been replaced.
initial toot: https://mastoxiv.page/@a…

Ion acceleration from micrometric targets immersed in an intense laser field
We report on an experimental study of proton acceleration by intense laser irradiation of micrometric bar targets, whose dimensions are transversely immersed in the laser focal volume and are longitudinally smaller than half its wavelength. With only 120 mJ of laser energy, we recorded proton energies in excess of 6~MeV, three times higher than those achieved with flat-foil irradiation using similar pulse energies. 3D particle-in-cell simulations revealed that the efficient energy transfer from…

Quasilinear Wave "Reflection" Due to Proton Heating by an Imbalanced Turbulent Cascade
Philip A. Isenberg, Bernard J. Vasquez, Benjamin D. G. Chandran, Peera Pongkitiwanichakul
https://arxiv.org/abs/2506.00141

Quasilinear Wave "Reflection" Due to Proton Heating by an Imbalanced Turbulent Cascade
We investigate the quasilinear effects of the resonant wave-particle interaction under conditions of imbalanced turbulent heating in the collisionless coronal hole. We find that velocity-space transport of protons from the heated part of the distribution leads to strong wave growth in the minority (sunward) direction. In the present quasilinear analysis, the "reflected" waves grow to unphysical levels, indicating the necessity of including nonlinear processes. This mechanism is likely to be imp…

This https://arxiv.org/abs/2412.18872 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Proton Flux Measurement from Neutron Monitor Data Using Neural Networks
Accurate measurements of cosmic ray proton flux are essential for studying the modulation processes of cosmic rays during the solar activity cycle. A proton flux measurement method, based on ground-based neutron monitor (NM) data and deep learning techniques, is presented. After the necessary pre-processing of ground-based NM data using a convolutional neural network (CNN) model, we simulate the relationship between NM observations and proton flux measured by the Alpha Magnetic Spectrometer (AM…

there is something profoundly funny about how mainstream tech now talks about how #Linux-based handhelds are better at power management than #windows-based ones. what’s next? “use linux for better printer support!” or “sound is only reliable on Linux tbh”
Really curious where the Proton train wi…

Measurement of $\psi(2S)$ to $J/\psi$ cross-section ratio as function of multiplicity in $p$Pb collisions at$\sqrt{s_{NN}} = 8.16$ TeV
LHCb collaboration, et al.
https://arxiv.org/abs/2506.08624

Measurement of $ψ(2S)$ to $J/ψ$ cross-section ratio as function of multiplicity in $p$Pb collisions at$\sqrt{s_{NN}} = 8.16$ TeV
The production ratio of $ψ(2S)$ to $J/ψ$ charmonium states is presented as a function of multiplicity in proton-lead collisions at a centre-of-mass energy of $\sqrt{s_{NN}}=8.16$ TeV, for both prompt and nonprompt sources. The total luminosity recorded by the LHCb experiment corresponds to 13.6 $pb^{-1}$ for $p$Pb collisions and 20.8 $pb^{-1}$ for Pb$p$ collisions, where the first particle indicates the forward direction of the detector. Measurements are performed in the dimuon final state at…

PSA: Some games are working in HDR without Gamescope on Gnome 48 using TKG Wine/Proton Experimental in Wayland mode. Definitely not all games, but some, when it does work its fucking awesome I'm hyped #linuxgaming #gnome

Quantum-Inspired Genetic Optimization for Patient Scheduling in Radiation Oncology
Akira SaiToh, Arezoo Modiri, Amit Sawant, Robabeh Rahimi
https://arxiv.org/abs/2506.04328

Quantum-Inspired Genetic Optimization for Patient Scheduling in Radiation Oncology
Among the genetic algorithms generally used for optimization problems in the recent decades, quantum-inspired variants are known for fast and high-fitness convergence and small resource requirement. Here the application to the patient scheduling problem in proton therapy is reported. Quantum chromosomes are tailored to possess the superposed data of patient IDs and gantry statuses. Selection and repair strategies are also elaborated for reliable convergence to a clinically feasible schedule alt…

Search for dark matter produced in association with a Higgs boson decaying to a $\tau$ lepton pair in proton-proton collisions at $\sqrt{s}$ = 13 TeV
CMS Collaboration
https://arxiv.org/abs/2506.04431

Search for dark matter produced in association with a Higgs boson decaying to a $τ$ lepton pair in proton-proton collisions at $\sqrt{s}$ = 13 TeV
A search for dark matter particles produced in association with a Higgs boson decaying into a pair of $τ$ leptons is performed using data collected in proton-proton collisions at a center-of-mass energy of 13 TeV with the CMS detector. The analysis is based on a data set corresponding to an integrated luminosity of 101 fb$^{-1}$ collected in 2017$-$2018. No significant excess over the expected standard model background is observed. This result is interpreted within the frameworks of the 2HDM+a…

Understanding the medium-like effects in the jet-like yield in pp and p-Pb collisions using event generators
Dushmanta Sahu, Antonio Ortiz, Victor Campos
https://arxiv.org/abs/2506.06587

Understanding the medium-like effects in the jet-like yield in pp and p-Pb collisions using event generators
To understand the dynamics of jet-medium interaction in small systems such as proton-proton (pp) and proton-lead (p-Pb) collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV, particle production is studied in three distinct topological regions defined with respect to the charged particle with the highest transverse momentum in the event ($p_{\rm T}^{\rm trig}$). The jet-like yield is defined by the particle density in the toward region ($|Δφ|<π/3$) after subtracting that in the transverse r…

Diffusion Transformer-based Universal Dose Denoising for Pencil Beam Scanning Proton Therapy
Yuzhen Ding, Jason Holmes, Hongying Feng, Martin Bues, Lisa A. McGee, Jean-Claude M. Rwigema, Nathan Y. Yu, Terence S. Sio, Sameer R. Keole, William W. Wong, Steven E. Schild, Jonathan B. Ashman, Sujay A. Vora, Daniel J. Ma, Samir H. Patel, Wei Liu
https://…

Diffusion Transformer-based Universal Dose Denoising for Pencil Beam Scanning Proton Therapy
Purpose: Intensity-modulated proton therapy (IMPT) offers precise tumor coverage while sparing organs at risk (OARs) in head and neck (H&N) cancer. However, its sensitivity to anatomical changes requires frequent adaptation through online adaptive radiation therapy (oART), which depends on fast, accurate dose calculation via Monte Carlo (MC) simulations. Reducing particle count accelerates MC but degrades accuracy. To address this, denoising low-statistics MC dose maps is proposed to enable fas…

A method of numerical calculation of the effect of short-range correlations for a wide range of nuclei
Tianyang Ma, Shalom Shlomo
https://arxiv.org/abs/2506.05512

A method of numerical calculation of the effect of short-range correlations for a wide range of nuclei
We introduce a method to calculate the effect of short-range correlation (SRC) on the proton density distribution numerically, up to the first order of the cluster expansion, that can be used for wide range of closed shell nuclei and determine the effect on proton density, root-mean square (RMS) radius, and form factor of many different closed-shell nuclei: $^4$He, $^{16}$O, $^{28}$Si, $^{32}$S, $^{40}$Ca, $^{60}$Ni, $^{90}$Zr, $^{140}$Ce and $^{208}$Pb. In the short-range correlations, we have…

Beam-Gas Interactions in the CERN Proton Synchrotron: Cross Section Measurements and Lifetime Modelling
E. Waagaard, F. Ukena, J. Olsen, R. Alemany Fern\'andez, J. Somoza, G. Weber
https://arxiv.org/abs/2506.02928

Beam-Gas Interactions in the CERN Proton Synchrotron: Cross Section Measurements and Lifetime Modelling
The acceleration of high-intensity lead (Pb) beams for injection into the Large Hadron Collider (LHC) is limited by significant losses in the preceding CERN ion injector chain. A potential but largely uncharted source of losses are charge-changing beam interactions such as electron loss or capture with residual gas molecules. These effects potentially impede future ion candidate species requested by the LHC and the CERN fixed-target experiments. To predict the cross sections of charge-changing …

And how am i suppose to tell my wife that yes i will play a game about digging a hole and yes i paid for it real money. I hope this game doesn’t run on Proton
#gaming

Nucleon Decays into Light New Particles in Neutrino Detectors
Julian Heeck, Ian M. Shoemaker
https://arxiv.org/abs/2506.08090 https://

Nucleon Decays into Light New Particles in Neutrino Detectors
Proton and neutron decays into light new particles $X$ can drastically change the experimental signatures and benefit from the complementarity of large water-Cherenkov neutrino detectors such as Super/Hyper-Kamiokande and tracking detectors such as JUNO and DUNE. The proton decays $p\to \ell^+ X$ and $p\to π^+ X$ with $m_X$ near phase-space closure lead to charged particles below Cherenkov threshold, rendering them practically invisible in Super- and Hyper-Kamiokande but not in JUNO and DUNE, …

Energy Spectra of Secondary Particles Induced by Solar Energetic Proton Events and Magnetospheric Effects
A. Chilingarian
https://arxiv.org/abs/2505.16269 …

Energy Spectra of Secondary Particles Induced by Solar Energetic Proton Events and Magnetospheric Effects
We investigate the energy spectra of secondary cosmic ray particles associated with two distinct solar events: the magnetospheric effect (ME) of 5 November 2023 and ground-level enhancement (GLE 74) of 11 May 2024. Using data from the SEVAN and Neutron Monitor networks and energy release histograms from particle spectrometers, we reconstruct spectra and identify key differences between ME and GLE. CORSIKA-based simulations reveal that MEs are caused by galactic protons below geomagnetic cutoff …

Search for millicharged particles in proton-proton collisions at $\sqrt{s} = 13.6$ TeV
S. Alcott, Z. Bhatti, J. Brooke, C. Campagnari, M. Carrigan, M. Citron, R. De Los Santos, A. De Roeck, C. Dorofeev, T. Du, J. Goldstein, F. Golf, N. Gonzalez, A. Haas, J. Heymann, C. S. Hill, D. Imani, M. Joyce, K. Larina, R. Loos, S. Lowette, H. Mei, D. W. Miller, B. Peng, S. N. Santpu, I. Reed, E. Schaffer, R. Schmitz, J. Steenis, D. Stuart, J. S. Tafoya Vargas, D. Vannerom, T. Wybouw, Z. Xiao, H. …

Search for millicharged particles in proton-proton collisions at $\sqrt{s} = 13.6$ TeV
We report on a search for elementary particles with charges much smaller than the electron charge using a data sample of proton-proton collisions provided by the CERN Large Hadron Collider in 2023--24, corresponding to an integrated luminosity of 124.7~fb$^{-1}$ at a center-of-mass energy of 13.6~TeV. The analysis presented uses the completed Run 3 milliQan bar detector to set the most stringent constraints to date for particles with charges $\leq0.24~\rm{e}$ and masses $\geq0.45~\rm{GeV}$.

I think the most annoying thing is that I don't quite have the chops to figure out why the new pedals don't work. However, I did send an email to Honeycomb Aeronautics so we'll see where that goes. Until then it's time to rack my brain for another avenue to get these pedals to work under Linux/Steam/Proton.
#linux

An interpretation of the fully-charmed scalar state $X(6200)$ as a molecular di-meson
\"O. E. Demircan, H. Da\u{g}, H. Sundu, J. Y. S\"ung\"u, E. V. Veliev
https://arxiv.org/abs/2506.08589

An interpretation of the fully-charmed scalar state $X(6200)$ as a molecular di-meson
The LHCb Collaboration recently observed new structures in the invariant mass spectrum of $J/ψJ/ψ$ meson pairs produced in proton-proton collisions, including a narrow peak around $6.2$ GeV. This study investigates the thermal behavior of this newly discovered fully-charm resonance, assuming it to be an $η_cη_c$ molecule with quantum numbers $J^{PC} = 0^{++}$. Employing thermal QCD sum rules up to dimension four, we analyze the temperature dependence of the mass and the decay constant. Our …

Lattice QCD Benchmark of Proton Helicity and Flavor-Dependent Unpolarized TMDPDFs at Physical Quark Masses
Dennis Bollweg, Xiang Gao, Swagato Mukherjee, Yong Zhao
https://arxiv.org/abs/2505.18430

Lattice QCD Benchmark of Proton Helicity and Flavor-Dependent Unpolarized TMDPDFs at Physical Quark Masses
We present the first lattice QCD calculations of the isovector helicity transverse momentum-dependent parton distribution function (TMDPDF) and the flavor-dependent unpolarized TMDPDFs for up and down quarks in the proton. Our computations utilize domain-wall fermion discretization with physical quark masses. Employing Coulomb-gauge-fixed bilocal quark correlation functions within the large-momentum effective theory framework, we access nonperturbative transverse quark separations $b_T$ up to a…

This https://arxiv.org/abs/2502.02244 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Measured gain suppression in FBK LGADs with different active thicknesses
In recent years, the gain suppression mechanism has been studied for large localized charge deposits in Low-Gain Avalanche Detectors (LGADs). LGADs are a thin silicon detector with a highly doped gain layer that provides moderate internal signal amplification. Using the CENPA Tandem accelerator at the University of Washington, the response of LGADs with different thicknesses to MeV-range energy deposits from a proton beam were studied. Three LGAD prototypes of 50~$μ$m, 100~$μ$m, 150~$μ$m wer…

Detection of Molecular Hydrogen in a Proton Trap
J. Caylor (Thomas Jefferson National Accelerator Facility, Newport News USA), R. Biswas (Tulane University, New Orleans USA), B. Crawford (Gettysburg College, Gettysburg USA), M. S. Dewey (National Institute of Standards and Technology, Gaithersburg USA), N. Fomin (University of Tennessee, Knoxville USA), G. L. Greene (University of Tennessee, Knoxville USA, Tulane University, New Orleans USA), S. F. Hoogerheide (National Institute of St…

Detection of Molecular Hydrogen in a Proton Trap
One method of determining the free neutron lifetime involves the absolute counting of neutrons and trapped decay protons. In such experiments, a cold neutron beam traverses a segmented proton trap inside a superconducting solenoid while the neutron flux is continuously monitored. Protons that are born within the fiducial volume of the trap are confined radially by the magnetic field and axially by the electrostatic potential supplied by trap electrodes. They are periodically released and counte…

Three-pion Bose-Einstein correlations measured in proton-proton collisions
LHCb collaboration
https://arxiv.org/abs/2506.03072 https://

Three-pion Bose-Einstein correlations measured in proton-proton collisions
A study on the Bose-Einstein correlations for triplets of same-sign pions is presented. The analysis is performed using proton-proton collisions at a centre-of-mass energy of $\sqrt{s}$ = 7 TeV, recorded by the LHCb experiment, corresponding to an integrated luminosity of 1.0 fb$^{-1}$. For the first time, the results are interpreted in the core-halo model. The parameters of the model are determined in regions of charged-particle multiplicity. This measurement provides insight into the nature o…

When water phase matters: its effect on the stopping cross section for proton therapy and astrophysics
F. Matias, N. E. Koval, P. de Vera, R. Garcia-Molina, I. Abril, J. M. B. Shorto, H. Yoriyaz, J. J. N. Pereira, T. F. Silva, M. H. Tabacniks, M. Vos, P. L. Grande
https://arxiv.org/abs/2505.23396…

When water phase matters: its effect on the stopping cross section for proton therapy and astrophysics
Accurately quantifying the energy loss rate of proton beams in liquid water is crucial for the precise application and improvement of proton therapy, whereas the slowing down of proton in water ices also plays an important role in astrophysics. However, precisely determining the electronic stopping power, particularly for the liquid phase, has been elusive so far. Experimental techniques are difficult to apply to volatile liquids, and the availability of sufficient reliable measurements has bee…

Accessing proton number fluctuations in limited regions of phase space
Piotr Bozek
https://arxiv.org/abs/2506.04029 https://arxiv.org…

Accessing proton number fluctuations in limited regions of phase space
In heavy ion collisions particle distributions fluctuate from event to event. It is interesting to study local fluctuations of a specific particle specie, e.g. baryons, in the transverse plane. Fluctuations of the harmonic flow provide an integrated measure of such fluctuations. An alternative approach is to study proton number fluctuations measured in a relatively narrow azimuthal angle window. Due to the transverse flow, particles registered in a narrow azimuthal angle window are emitted pred…

Investigating the most active pp collisions (top 0.1 %) using the tools developed by experiments at the LHC
Jes\'us Eduardo Mu\~noz M\'endez, Antonio Ortiz
https://arxiv.org/abs/2506.06588

Investigating the most active pp collisions (top 0.1 %) using the tools developed by experiments at the LHC
The LHC data have unveiled unexpected features in proton-proton (pp) collisions, namely, collective-like behavior and strangeness enhancement. Originally, these new effects were discovered only in high-multiplicity pp collisions. However, recently the ALICE Collaboration has shown that even low-multiplicity pp collisions yield a non-zero elliptic flow ($v_{2}$). Moreover, analyses as functions of the event structure, such as transverse spherocity, suggest that multiplicity might not be the main…

This https://arxiv.org/abs/2412.04854 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepe…

First constraint for atmospheric millicharged particles with the LUX-ZEPLIN experiment
We report on a search for millicharged particles (mCPs) produced in cosmic ray proton atmospheric interactions using data collected during the first science run of the LUX-ZEPLIN experiment. The mCPs produced by two processes -- meson decay and proton bremsstrahlung -- are considered in this study. This search utilized a novel signature unique to liquid xenon (LXe) time projection chambers (TPCs), allowing sensitivity to mCPs with masses ranging from 10 to 1000 MeV/c$^2$ and fractional charges …

@emi200@sakurajima.moe GOG is my first platform of choice these days. They suck when it comes to GNU/Linux support, but Heroic with Wine or Proton largely fixes that.
I used to get everything physically, but I'll rarely be doing that going forward (with everything going digital, and even physical carts mandating a download for the game, or updates, or DLC...). As such, there's no longer any point prioritising games on console unless it's a really good exclusive — and even t…

Inclusive open charm photoproduction in ultraperipheral collisions at the LHC with G$\gamma$A-FONLL
Matteo Cacciari, Gian Michele Innocenti, Anna M. Sta\'sto
https://arxiv.org/abs/2506.09893

Inclusive open charm photoproduction in ultraperipheral collisions at the LHC with G$γ$A-FONLL
We compute the inclusive $D^{0}$ production cross section in ultraperipheral Pb-Pb collisions at the LHC as a function of the $D^{0}$ transverse momentum and rapidity. These calculations are carried out within the new G$γ$A-FONLL (Generalized Photon-Nucleus FONLL) framework, which can predict photonuclear cross sections for charm and beauty hadrons in electron-proton, electron-nucleus, and ultraperipheral heavy-ion collisions. The framework relies on FONLL (Fixed-Order Next-to-Leading Logarith…

This https://arxiv.org/abs/2504.10531 has been replaced.
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Confining Quantum Chromodynamics Model for 3-Quark Baryons, New Mass Source, `Proton Spin Crisis' Solution and Idealized Quark-Lepton Mass Symmetry
We discuss a model for the relativistic bound states of 3-quark baryons based on confining quantum chromoynamics (QCD) with general Yang-Mills symmetry. The model postulates that 3-quark states are formed by consecutive 2-body collisions. For a proton, d and u quarks get together first, and then they capture another u quark so that the d quark is at the core to form a stable proton state with intergral electric charge. The two u quarks form a quantum spheric shell and move in a confining potent…

This https://arxiv.org/abs/2409.13663 has been replaced.
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Measurement of the Higgs boson mass and width using the four-lepton final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV
A measurement of the Higgs boson mass and width via its decay to two Z bosons is presented. Proton-proton collision data collected by the CMS experiment, corresponding to an integrated luminosity of 138 fb$^{-1}$ at a center-of-mass energy of 13 TeV is used. The invariant mass distribution of four leptons in the on-shell Higgs boson decay is used to measure its mass and constrain its width. This yields the most precise single measurement of the Higgs boson mass to date, 125.04 $\pm$ 0.12 GeV, a…

Neutron Magic Numbers in $sd$ Shell from Nuclear Charge Radii within Neutron-Proton Correction around the Fermi Surface
Yu-Ting Rong, Ping-Mo Liu, Dan Yang, Rong An
https://arxiv.org/abs/2505.22412

Neutron Magic Numbers in $sd$ Shell from Nuclear Charge Radii within Neutron-Proton Correction around the Fermi Surface
Charge radii are sensitive indicators to identify the nuclear structure phenomena throughout the whole nuclide chart. In particular, the shrunken trend of changes of charge radii along a long isotopic chain is intimately associated with the shell quenching effect. In this work, the systematic evolution of charge radii along the proton numbers $Z=8$, $10$, $12$, $14$, $18$ isotopes is investigated by a relativistic Hartree Bogoliubov model. A ansatz about neutron-proton correlation around Fermi …

Quantitative Macromolecular Proton Fraction Imaging using Pulsed Spin-Lock
Qianxue Shan (Department of Imaging and Interventional Radiology), Ziqiang Yu (Department of Imaging and Interventional Radiology), Baiyan Jiang (Department of Imaging and Interventional Radiology, Illumination Medical Technology Limited), Jian Hou (Department of Imaging and Interventional Radiology), Qiuyi Shen (Department of Imaging and Interventional Radiology), Winnie CW Chu (Department of Imaging and Interv…

Quantitative Macromolecular Proton Fraction Imaging using Pulsed Spin-Lock
Purpose: Recent studies have shown that spin-lock MRI can simplify quantitative magnetization transfer (MT) by eliminating its dependency on water pool parameters, removing the need for a T1 map in macromolecular proton fraction (MPF) quantification. However, its application is often limited by the requirement for long radiofrequency (RF) pulse durations, which are constrained by RF hardware capabilities despite remaining within specific absorption rate (SAR) safety limits. Methods: To addres…

Experimental Study of Tensor Structure Function of Deuteron
Jiwan Poudel, Alessandro Bacchetta, Jian-Ping Chen, Nathaly Santiesteban
https://arxiv.org/abs/2506.04506

Experimental Study of Tensor Structure Function of Deuteron
The deuteron is the lightest spin-1 nucleus, consisting of a weakly bound system of two spin-1/2 nucleons. One intriguing characteristic of the deuteron is the tensor polarized structure, which cannot be naively constructed combining the proton and neutron structure. The tensor structure of the deuteron provides unique insights into the quarks and gluons distributions and their dynamics within the nucleus. It can be studied experimentally through inclusive and semi-inclusive Deep Inelastic Scat…

Observation of $t\bar{t}\gamma\gamma$ production at $\sqrt{s}=$13 TeV with the ATLAS detector
ATLAS Collaboration
https://arxiv.org/abs/2506.05018 https://…

Observation of $t\bar{t}γγ$ production at $\sqrt{s}=$13 TeV with the ATLAS detector
This paper presents the first observation of top-quark pair production in association with two photons ($t\bar{t}γγ$). The measurement is performed in the single-lepton decay channel using proton-proton collision data collected by the ATLAS detector at the Large Hadron Collider. The data correspond to an integrated luminosity of 140 fb$^{-1}$ recorded during Run 2 at a centre-of-mass energy of 13 TeV. The $t\bar{t}γγ$ production cross section, measured in a fiducial phase space based on par…

This https://arxiv.org/abs/2503.05253 has been replaced.
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Electromagnetic emission from strongly interacting hadronic and partonic matter created in heavy-ion collisions
We investigate dilepton production in heavy-ion, proton-proton, and proton-nucleus collisions from low energies of 1 AGeV (SIS) to ultra-relativistic energies (LHC) using the Parton-Hadron-String Dynamics (PHSD) transport approach. PHSD is a microscopic, non-equilibrium approach that integrates hadronic and partonic degrees of freedom, providing a comprehensive description of relativistic heavy-ion collisions from initial nucleon-nucleon interactions to quark-gluon plasma (QGP) formation, hadro…

Tensor Network for Anomaly Detection in the Latent Space of Proton Collision Events at the LHC
Ema Puljak, Maurizio Pierini, Artur Garcia-Saez
https://arxiv.org/abs/2506.00102

Tensor Network for Anomaly Detection in the Latent Space of Proton Collision Events at the LHC
The pursuit of discovering new phenomena at the Large Hadron Collider (LHC) demands constant innovation in algorithms and technologies. Tensor networks are mathematical models on the intersection of classical and quantum machine learning, which present a promising and efficient alternative for tackling these challenges. In this work, we propose a tensor network-based strategy for anomaly detection at the LHC and demonstrate its superior performance in identifying new phenomena compared to estab…

This https://arxiv.org/abs/2412.03747 has been replaced.
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Model-agnostic search for dijet resonances with anomalous jet substructure in proton-proton collisions at $\sqrt{s}$ = 13 TeV
This paper presents a model-agnostic search for narrow resonances in the dijet final state in the mass range 1.8-6 TeV. The signal is assumed to produce jets with substructure atypical of jets initiated by light quarks or gluons, with minimal additional assumptions. Search regions are obtained by utilizing multivariate machine-learning methods to select jets with anomalous substructure. A collection of complementary anomaly detection methods - based on unsupervised, weakly supervised, and semis…

Quenching of single-particle strength inferred from nucleon-removal transfer reactions on $^{15}$C
Y. C. Jiang, J. Chen, B. P. Kay, C. R. Hoffman, T. L. Tang, I. A. Tolstukhin, M. R. Xie, J. G. Li, N. Michel, M. L. Avila, Y. Ayyad, D. Bazin, S. Bennett, J. A. Clark, S. J. Freeman, H. Jayatissa, G. Li, W. P. Liu, J. L. Lou, A. Munoz-Ramos, C. M\"uller-Gatermann, T. Nathan, D. Santiago-Gonzalez, D. K. Sharp, Y. P. Shen, A. H. Wuosmaa, C. X. Yuan

Quenching of single-particle strength inferred from nucleon-removal transfer reactions on $^{15}$C
The difference in the proton and neutron separation energies ($ΔS$) of the weakly bound $^{15}$C ground state is -19.86 MeV, an extreme value. Data from intermediate-energy heavy-ion induced (HI-induced) knockout reactions on nuclei spanning $-20\lesssimΔS\lesssim+20$ MeV, suggest that the degree to which single-particle strength is quenched, $R\mathrm{_{s}}$, has a negative correlation with $ΔS$, decreasing from unity around $-20$~MeV to around 0.2 at $+20$~MeV. For the $^{15}$C ground stat…

This https://arxiv.org/abs/2405.02926 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nuc…

Charge-changing cross section and interaction cross sections for 4$\leq$Z$ \leq$9 isotopes
The root-mean-square proton and neutron radii for $^{7,9-12,14}$\rm Be, $^{10-15,17}$\rm B, $^{12-19}$\rm C, $^{14,15,17-22}$\rm N, $^{16,18-24}$\rm O, and $^{18-21,23-26}$\rm F isotopes are deduced from a systematic analysis of experimental charge-changing and interaction cross sections in the framework of Glauber model. The calculations involve descriptions of nuclei based on Slater determinants using harmonic oscillator single-particle wave functions. The extracted proton and neutron radii h…

Comparing effective temperatures in standard and Tsallis distributions from transverse momentum spectra in small collision systems
Peng-Cheng Zhang, Pei-Pin Yang, Ting-Ting Duan, Hailong Zhu, Fu-Hu Liu, Khusniddin K. Olimov
https://arxiv.org/abs/2506.00339

Comparing effective temperatures in standard and Tsallis distributions from transverse momentum spectra in small collision systems
The transverse momentum ($p_T$) spectra of identified light charged hadrons, specifically the bosons $π^{\pm}$ and $K^{\pm}$ as well as the fermions $p(\bar p)$, produced in small collision systems, namely deuteron-gold (d+Au) and proton-proton (p+p) collisions at the top energy of the Relativistic Heavy Ion Collider (RHIC) with a center-of-mass energy of $\sqrt{s_{NN}}=200$ GeV, are investigated in this paper. In present study, d+Au collisions are categorized into three centrality classes: ce…

Search for Higgs boson decay to a charm quark-antiquark pair via $t\bar{tH}$ production
Sebastian Wuchterl (on behalf of the CMS Collaboration)
https://arxiv.org/abs/2506.02163

Search for Higgs boson decay to a charm quark-antiquark pair via $t\bar{tH}$ production
In these proceedings, a search for the standard model Higgs boson decaying to a charm quark-antiquark pair, $H\to c\bar{c}$, produced in association with a top quark-antiquark pair ($t\bar{tH}$) is presented. The search is performed using proton-proton collision data collected by the CMS experiment at $s=13$ TeV, corresponding to an integrated luminosity of 138 fb$^{-1}$. The Higgs boson decay to a bottom quark-antiquark pair is measured simultaneously and the observed $t\bar{tH(H\to bb)}$ even…

This https://arxiv.org/abs/2505.09869 has been replaced.
initial toot: https://mastoxiv.page/@a…

How does the limited resolution of space plasma analyzers affect the accuracy of space plasma measurements?
We investigate the systematic errors in measured plasma velocity distribution functions and their corresponding velocity moments, arising from the limited energy and angular resolution of top-hat electrostatic analyzers. For this purpose, we develop a forward model of a concept analyzer that simulates observations of typical solar wind proton plasma particles with their velocities following a Maxwell distribution function. We then review the standard conversion of the observations to physical p…

This https://arxiv.org/abs/2505.20483 has been replaced.
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Measurement of WWZ and ZH production cross sections at $\sqrt{s}$ = 13 TeV
A measurement is presented of the cross section in proton-proton collisions for the production of two W bosons and one Z boson. It is based on data recorded by the CMS experiment at the CERN LHC at center-of-mass energies $\sqrt{s}$ = 13 and 13.6 TeV, corresponding to an integrated luminosity of 200 fb$^{-1}$. Events with four charged leptons (electrons or muons) in the final state are selected. Both nonresonant WWZ production and ZH production, with the Higgs boson decaying into two W bosons, …

This https://arxiv.org/abs/2504.17758 has been replaced.
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First study of neutrino angle reconstruction using quasielastic-like interactions in MicroBooNE
We investigate the expected precision of the reconstructed neutrino direction using a νμ-argon quasielastic-like event topology with one muon and one proton in the final state and the reconstruction capabilities of the MicroBooNE liquid argon time projection chamber. This direction is of importance in the context of DUNE sub-GeV atmospheric oscillation studies. MicroBooNE allows for a data-driven quantification of this resolution by investigating the deviation of the reconstructed muon-proton…

This https://arxiv.org/abs/2502.20044 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Spin 1 Transverse Momentum Dependent Tensor Structure Functions in CLAS12
We propose to analyze CLAS12 RG-C data to study the tensor transverse-momentum-dependent parton distribution functions (TMDs) on deuteron data. The deuteron is the lightest nucleus with spin-1, in essence a weakly bound system of two spin-1/2 nucleons. However, one of the most intriguing characteristics of the deuteron is that the tensor polarized structure provides direct access to the quark and gluon distribution of light nuclear system, which cannot be naively constructed from the proton and…

This https://arxiv.org/abs/2212.00763 has been replaced.
link: https://scholar.google.com/scholar?q=a

A Strong-QCD Regime Measurement of the Proton's Spin Structure
The theory of the strong force, Quantum Chromodynamics (QCD) remains one of the most important ways to understand the fundamental properties of ordinary matter. However, at low momentum transfer Q2, in the regime where the strong force becomes extremely strong, our understanding of QCD for ordinary nucleons becomes hazy. Several cutting edge theories such as Chiral Perturbation Theory and Lattice QCD have provided valuable predictions in this regime, but Lattice QCD has not yet extended predict…

Event Topology Classifiers at the Large Hadron Collider
Suraj Prasad, Sushanta Tripathy, Bhagyarathi Sahoo, Raghunath Sahoo
https://arxiv.org/abs/2506.03782

Event Topology Classifiers at the Large Hadron Collider
Event classifiers are the most fundamental observables to probe the system size and event topology of high-energy collisions. Significant progress has been made to establish suitable event classifiers to probe different physics processes occurring in elementary $e^{+}e^{-}$ to heavy-ion collisions in a range of center of mass energies. One of the major motivations to revisit event classifiers at the Large Hadron Collider (LHC) originates from the recent measurements of high multiplicity proton-…

Deformed magic numbers at $N=$178 and $Z=$120, 124 in the 112 $\leq N \leq $ 190 superheavy region from Skyrme mean-field calculations
W. Asous, Mastura Syamimi Abdullah, Meng-Hock Koh, Kok-Siong Khoo
https://arxiv.org/abs/2506.02684

Deformed magic numbers at $N=$178 and $Z=$120, 124 in the 112 $\leq N \leq $ 190 superheavy region from Skyrme mean-field calculations
Background: Various motivations for exploration of superheavy region revolve around the question on whether 126 is a spherical proton magic number, as is the case for neutrons. In exploring this region, identification of nuclei with relatively longer half-life as compared to its neighbours is crucial for experimental studies. Such information is provided from theoretical predictions, which are however, heavily dependent on the theoretical model used and observable quantities under investigation…

This https://arxiv.org/abs/2411.03399 has been replaced.
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Study of $D_{s1}(2460)^{+}\to D_{s}^{+}π^{+}π^{-}$ in $B\to {\bar{D}}^{(*)}D_{s}^{+}π^{+}π^{-}$ decays
An amplitude analysis of the $D_{s1}(2460)^+\to D_{s}^{+}π^{+}π^{-}$ transition is performed simultaneously in $B^{0}\to D^{-}D_{s}^{+}π^{+}π^{-}$, $B^{+}\to{\bar{D}}^{0} D_{s}^{+}π^{+}π^{-}$, and $B^{0}\to D^{*-}D_{s}^{+}π^{+}π^{-}$ decays. The study is based on a data sample of proton-proton collisions recorded with the LHCb detector at centre-of-mass energies of $\sqrt{s}=7,8,$ and $13\,$TeV, corresponding to a total integrated luminosity of $9\,\rm{fb}^{-1}$. A clear double-peak str…

This https://arxiv.org/abs/2412.13977 has been replaced.
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Theoretical investigation of charge-changing cross section and interaction cross section for Be, B, C, N, O, and F isotopes on $^{12}$C at 200-1050 MeV/nucleon
To establish credibility for the use of the Slater determinant harmonic oscillator (SDHO) density in predicting root-mean-square proton and neutron radii for Be, B, C, N, O, and F isotopes [M. Imran et al., {\color{blue}Phys. Rev. C {\bf 110}, 014623 (2024)}], in this work we propose to study charge-changing and interaction cross sections for the said isotopes on $^{12}$C at a wider range of incident energies (200-1050 MeV/nucleon), involving different density distributions; the calculations al…

High-precision Penning trap mass measurements of neutron-rich chlorine isotopes at the N=28 shell closure
H. Erington, G. Bollen, G. Dykstra, A. Hamaker, C. M. Ireland, C. R. Nicoloff, D. Puentes, R. Ringle, S. Schwarz, C. S. Sumithrarachchi, A. A. Valverde, I. T. Yandow
https://arxiv.org/abs/2505.18354

High-precision Penning trap mass measurements of neutron-rich chlorine isotopes at the N=28 shell closure
Although it is known that the $N=28$ spherical shell closure erodes, the strength of the closure with decreasing proton number $Z<20$ is an open question in nuclear structure. In this region of interest, direct high-precision mass measurements of neutron-rich $^{43-45}$Cl isotopes were performed at the Low Energy Beam and Ion Trap (LEBIT) when coupled to the National Superconducting Cyclotron Lab. The resulting mass excesses (MEs) are ME($^{43}$Cl) = -24114.4(1.7) keV, ME($^{44}$Cl) = -20450.8(…

This https://arxiv.org/abs/2412.11648 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nuc…

Isotopic Transparency in Central Xe+Sn Collisions at 100 MeV/nucleon
A new method, based on comparing isotopic yield ratios measured at forward and sideward polar angles and on cross-bombarding heavy nuclei with different neutron-to-proton ratios, is used to quantify the stopping power of nuclear matter in heavy-ion collisions. For central collisions of isotopically separated $^{124,129}$Xe+$^{112,124}$Sn at 100~MeV/nucleon bombarding energy, measured with the 4$π$ multidetector INDRA at GSI, a moderate transparency is deduced for hydrogen isotopes, whereas for…

Ab initio study of the radii of oxygen isotopes
Zhengxue Ren, Serdar Elhatisari, Ulf-G. Mei{\ss}ner
https://arxiv.org/abs/2506.02597 https://

Ab initio study of the radii of oxygen isotopes
We present an {\em ab initio} study of the charge and matter radii of oxygen isotopes from $^{16}$O to $^{20}$O using nuclear lattice effective field theory (NLEFT) with high-fidelity N$^3$LO chiral interactions. To efficiently address the Monte Carlo sign problem encountered in nuclear radius calculations, we introduce the {\em partial pinhole algorithm}, significantly reducing statistical uncertainties and extending the reach to more neutron-rich and proton-rich isotopes. Our computed charge …

Electric dipole polarizability constraints on neutron skin and symmetry energy
P. von Neumann-Cosel (Institut f\"ur Kernphysik, Technische Universit\"at Darmstadt, Germany, Norwegian Nuclear Research Center and Department of Physics, University of Oslo, Norway), A. Tamii (Research Center for Nuclear Physics, University of Osaka, Japan)
http…

Electric dipole polarizability constraints on neutron skin and symmetry energy
We review the experimental knowledge on the dipole polarizability (DP) of nuclei and its relation to the neutron skin thickness and properties of the neutron-rich matter equation of state (EOS). The discussion focuses on recent experiments using relativistic Coulomb excitation in inelastic proton scattering at extreme forward angles covering a mass range from $^{40}$Ca to $^{208}$Pb. Constraints on the neutron skins and the density dependence of the symmetry energy are derived from systematic c…

This https://arxiv.org/abs/2502.04053 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepe…

Proof of principle for a light dark matter search with low-energy positron beams at NA64
Thermal light dark matter (LDM) with particle masses in the 1 MeV - 1 GeV range could successfully explain the observed dark matter abundance as a relic from the primordial Universe. In this picture, a new feeble interaction acts as a "portal" between the Standard Model and LDM particles, allowing for the exploration of this paradigm at accelerator experiments. In the last years, the "missing energy" experiment NA64e at CERN SPS (Super Proton Synchrotron) has set world-leading constraints in th…