Tootfinder

pyCFS-data: Data Processing Framework in Python for openCFS
Andreas Wurzinger, Stefan Schoder
https://arxiv.org/abs/2405.03437 https://

pyCFS-data: Data Processing Framework in Python for openCFS
Many numerical simulation tools have been developed and are on the market, but there is still a strong need for appropriate tools capable of simulating multi-field problems, especially in aeroacoustics. Therefore, openCFS provides an open-source framework for implementing partial differential equations using the finite element method. Since 2000, the software has been developed continuously. The result is openCFS (before 2020, known as CFS++ Coupled Field Simulations written in C++). In this pa…

This https://arxiv.org/abs/2310.01510 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Neutrinos from muon-rich ultra high energy electromagnetic cascades: The MUNHECA code
An ultra high energy electromagnetic cascade, a purely leptonic process and initiated by either photons or $e^\pm$, can be a source of high energy neutrinos. We present a public python3 code, MUNHECA, to compute the neutrino spectrum by taking into account various QED processes, with the cascade developing either along the propagation in the cosmic microwave background in the high-redshift universe or in a predefined photon background surrounding the astrophysical source. The user can adjust va…

Muon Track Reconstruction in the Scintillator Phase of SNO
Jasmine Simms
https://arxiv.org/abs/2404.03680 https://arxiv.org/pdf/2404…

Muon Track Reconstruction in the Scintillator Phase of SNO+
The large depth of the SNO+ experiment (2070 m, 6010 m.w.e.) means that only a few muons per day pass through the detector. However, their high energy causes muon induced backgrounds which can affect multiple physics analyses. Reconstructing the muon track would allow for improved rejection for these induced backgrounds. Currently there is no muon tracker for the scintillator phase of SNO+. This poster presents a novel method of muon track reconstruction by using the high photon sampling from m…

Russian Media Monitoring: “Macron and NATO troops to Ukraine” (February 26th–March 3rd) Written by Matt Wickham, UCMC/HWAG analyst This week, Russian propaganda is in a frenzy over the question of whe Source : https://uacrisis.org/en/russian-media-moni…

Fiducial and differential cross-section measurements of electroweak $W\gamma jj$ production in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
ATLAS Collaboration
https://arxiv.org/abs/2403.02809 https://arxiv.org/pdf/2403.02809
arXiv:2403.02809v1 Announce Type: new
Abstract: The observation of the electroweak production of a $W$ boson and a photon in association with two jets, using $pp$ collision data at the Large Hadron Collider at a centre of mass energy of $\sqrt{s}=13$~TeV, is reported. The data were recorded by the ATLAS experiment from 2015 to 2018 and correspond to an integrated luminosity of 140 fb$^{-1}$. This process is sensitive to the quartic gauge boson couplings via the vector boson scattering mechanism and provides a stringent test of the electroweak gauge symmetry breaking of the Standard Model. Events are selected if they contain one electron or muon, missing transverse momentum, at least one photon, and two jets. Multivariate techniques are used to distinguish the electroweak $W\gamma jj$ process from irreducible background processes. The observed significance of the electroweak $W\gamma jj$ process is well above six standard deviations, compared to an expected significance of 6.3 standard deviations. Fiducial and differential cross sections are measured in a fiducial phase space close to the detector acceptance, which are in reasonable agreement with leading order Standard Model predictions from MadGraph5 Pythia8 and Sherpa. The results are used to constrain new physics effects in the context of an effective field theory.

This https://arxiv.org/abs/2405.01050 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qu…

Are we allowed to subtract accidental coincidences in experiments of photon correlations?
Subtracting accidental coincidences is a common practice quantum optics experiments. For zero mean Gaussian states, such as squeezed vacuum, we show that if one removes accidental coincidences the measurement results are quantitatively the same, both for photon coincidences at very low flux and for intensity covariances. Consequently, pure quantum effects at the photon level, like interference of photon wave functions or photon bunching, are reproduced in the correlation of fluctuations of macr…

Effects of mechanical stress, chemical potential, and coverage on hydrogen solubility during hydrogen enhanced decohesion of ferritic steel grain boundaries: A first-principles study
Abril Azocar Guzman, Rebecca Janisch
https://arxiv.org/abs/2403.04741

Effects of mechanical stress, chemical potential, and coverage on hydrogen solubility during hydrogen enhanced decohesion of ferritic steel grain boundaries: A first-principles study
Hydrogen enhanced decohesion (HEDE) is one of the many mechanisms of hydrogen embrittlement, a phenomenon which severely impacts structural materials such as iron and iron alloys. Grain boundaries (GBs) play a critical role in this mechanism, where they can provide trapping sites or act as hydrogen diffusion pathways. The interaction of H with GBs and other crystallographic defects, and thus the solubility and distribution of H in the microstructure, depends on the concentration, chemical poten…

Mem-elements based Neuromorphic Hardware for Neural Network Application
Ankur Singh
https://arxiv.org/abs/2403.03002 https://arxiv.or…

Mem-elements based Neuromorphic Hardware for Neural Network Application
The thesis investigates the utilization of memristive and memcapacitive crossbar arrays in low-power machine learning accelerators, offering a comprehensive co-design framework for deep neural networks (DNN). The model, implemented through a hybrid Python and PyTorch approach, accounts for various non-idealities, achieving exceptional training accuracies of 90.02% and 91.03% for the CIFAR-10 dataset with memristive and memcapacitive crossbar arrays on an 8-layer VGG network. Additionally, the t…

Searching for a new light gauge boson with axial couplings in muon beam dump experiments
Pierre Fayet, Mar\'ia Olalla Olea-Romacho
https://arxiv.org/abs/2405.02104

Searching for a new light gauge boson with axial couplings in muon beam dump experiments
We present a formalism for new $U(1)$ interactions involving weak hypercharge, baryon, and lepton numbers, and a possible axial symmetry generator $F_A$ in the presence of a second Brout-Englert-Higgs doublet. The resulting $U$ boson, after mixing with the $Z$, interpolates between a generalised dark photon, a dark $Z$, and an axially coupled gauge boson. We especially focus on the axial couplings originating from $F_A$ or from mixing with the $Z$, determined by the scalar sector via parameters…

Direct detection of light dark matter charged under a $L_{\mu} - L_{\tau}$ symmetry
Pablo Figueroa, Gonzalo Herrera, Fredy Ochoa
https://arxiv.org/abs/2404.03090

Direct detection of light dark matter charged under a $L_μ - L_τ$ symmetry
A possible extension of the Standard Model able to explain the recent measurement of the anomalous magnetic moment of the muon consists in adding a gauged $U(1)_{L_μ-L_τ}$ symmetry. If the dark matter particle is charged under this symmetry, the kinetic mixing between the new gauge boson and the photon induces dark matter-electron interactions. We derive direct detection constraints on light dark matter charged under a $U(1)_{L_μ-L_τ}$ symmetry with electron recoil experiments, and explore …