Tootfinder

Collective motion in the massive Schwinger model via Tensor Network
Haiyang Shao, Shile Chen, Shuzhe Shi
https://arxiv.org/abs/2509.10835 https://arxiv.org…

Collective motion in the massive Schwinger model via Tensor Network
We simulate the real-time dynamics of a massive Schwinger model using the Time-Evolving Block Decimation tensor network algorithm. Starting from a non-equilibrium initial state with localized energy excitation on top of vacuum, we track the subsequent evolution to investigate two distinct physical phenomena. First, by analyzing the system's energy-momentum tensor, we show that this system exhibits hydrodynamic behavior analogous to Bjorken flow at large coupling-to-mass ratio, a signature that …

Unveiling the shape of the $^{20}$Ne nucleus by measuring the flow coefficients with cumulants in PbNe and PbAr collisions at $\sqrt{s_{NN}} = 70.9$ GeV
LHCb collaboration
https://arxiv.org/abs/2509.12399

Unveiling the shape of the $^{20}$Ne nucleus by measuring the flow coefficients with cumulants in PbNe and PbAr collisions at $\sqrt{s_{NN}} = 70.9$ GeV
The anisotropic flow coefficients $v_n$ quantify the collective medium response to the initial spatial anisotropy of the overlapping region in ion collisions and serve as sensitive probes of both the medium properties and shape of nuclear initial states. In this analysis, the $v_2$ and $v_3$ parameters of prompt charged particles are measured using the multiparticle cumulant method in fixed-target PbNe and PbAr collisions at $\sqrt{s_{NN}} = 70.9$ GeV, collected by LHCb using the SMOG2 gas-targ…

Replaced article(s) found for nucl-th. https://arxiv.org/list/nucl-th/new
[1/1]:
- Bayesian inference of nuclear incompressibility from collective flow in mid-central Au Au collisi...
J. M. Wang, X. G. Deng, W. J. Xie, B. A. Li, Y. G. Ma

Onset of Bjorken Flow in Quantum Evolution of the Massive Schwinger Model
Haiyang Shao, Shile Chen, Shuzhe Shi
https://arxiv.org/abs/2509.10855 https://arx…

Onset of Bjorken Flow in Quantum Evolution of the Massive Schwinger Model
The onset of hydrodynamics in the hot medium created in relativistic heavy-ion collisions is a crucial theoretical question. A first-principle simulation requires a real-time, non-perturbative calculation of the quantum system. In this Letter, we perform such simulations using the tensor network method, which enables large-scale quantum many-body simulations by retaining only the most essential quantum states for collective behaviors. We focus on the massive Schwinger model, a low-dimensional a…

Real-time energy monitoring infrastructure for residential collective self-consumption operations using Linky meter
J\'er\^ome Ferrari (G2Elab-MAGE), Benoit Delinchant (G2Elab-MAGE), Fr\'ed\'eric Wurtz (G2Elab-MAGE), Olga Rouchouze (G2Elab-MAGE)
https://arxiv.org/abs/2507.22891

Real-time energy monitoring infrastructure for residential collective self-consumption operations using Linky meter
As part of the energy transition and the rise in energy prices, the number of collective self-consumption operations in France is steadily increasing. However, energy flow monitoring currently relies on historical ''day+1'' data provided by Linky meters, which does not offer real time feedback to help participants adapt their energy consumption behaviors. This article introduces a new open-source infrastructure for real-time monitoring based on Linky meter data, enabling participants to make in…

Light nuclei elliptic flow at mid-rapidity in $\sqrt{s_{NN}} = 3.0-3.9$ GeV Au Au collisions using coalescence model
Y. Xu, X. H. He, Y. P. Zhang
https://arxiv.org/abs/2508.05944

Light nuclei elliptic flow at mid-rapidity in $\sqrt{s_{NN}} = 3.0-3.9$ GeV Au+Au collisions using coalescence model
Light nuclei collective flow is an important probe for understanding their production mechanisms in heavy-ion collisions. The STAR collaboration has reported that the atomic mass number ($A$) scaling of light nuclei elliptic flow $v_2$ is broken at $\sqrt{s_{NN}} = 3.0-3.9$ GeV. The observations reveals that, while protons maintain negative $v_2$ values at mid-rapidity at both 3.0 and 3.2 GeV, light nuclei $v_2$ exhibit a sign change from negative at 3.0 GeV to positive at 3.2 GeV. In this stud…

Evidence of nuclear geometry-driven anisotropic flow in OO and Ne$-$Ne collisions at $\mathbf{\sqrt{{\textit s}_{\rm\mathbf {NN}}}}$ = 5.36 TeV
ALICE Collaboration
https://arxiv.org/abs/2509.06428

Evidence of nuclear geometry-driven anisotropic flow in OO and Ne$-$Ne collisions at $\mathbf{\sqrt{{\textit s}_{\rm\mathbf {NN}}}}$ = 5.36 TeV
A central question in strong-interaction physics, governed by quantum chromodynamics (QCD), is whether femto-scale droplets of quark$-$gluon plasma (QGP) form in small collision systems involving projectiles significantly smaller than heavy ions. Collisions of light ions such as $^{16}$O and $^{20}$Ne offer a unique opportunity to probe the emergence of collective behavior in QCD matter. This Letter presents the first measurements of elliptic ($v_2$) and triangular ($v_3$) flow of charged parti…

Knudsen number and universal behavior of collective flows in conformal and non-conformal systems
Vincenzo Nugara (Department of Physics and Astronomy, University of Catania, Catania, INFN-Laboratori Nazionali del Sud, Catania, Italy), Nicolas Borghini (Fakult\"at f\"ur Physik, Universit\"at Bielefeld, D-33615 Bielefeld, Germany), Vincenzo Greco (Department of Physics and Astronomy, University of Catania, Catania, INFN-Laboratori Nazionali del Sud, Catania, Italy), Salvat…

Knudsen number and universal behavior of collective flows in conformal and non-conformal systems
We investigate the role of the Knudsen number (Kn) as a scaling parameter governing the emergence of collective behavior in relativistic heavy-ion collisions. Using the Relativistic Boltzmann Transport approach, we explore different initial conditions for both conformal (massless) and non-conformal (massive) systems with a constant specific shear viscosity $η/s$. Observables such as the time evolution of anisotropic flow coefficients collapse onto universal curves for fixed classes of Knudsen …

Antiferromagnetic Skyrmion Scattering Revealed by Direct Time-Resolved Imaging of Collective Dynamics
Mona Bhukta, Takaaki Dohi, Kilian Leutner, Maria-Andromachi Syskaki, Fabian Kammerbauer, Duc Minh Tran, Sebastian Wintz, Markus Weigand, Robert Fr\"omter, Mathias Kl\"aui
https://arxiv.org/abs/2508.17967

Antiferromagnetic Skyrmion Scattering Revealed by Direct Time-Resolved Imaging of Collective Dynamics
Scattering analysis offers a fundamental route to revealing particle interactions with direct implications for device technologies relying on ensembles of particles such as magnetic skyrmions. Here, we directly visualize, in real time, the nanosecond current-driven dynamics of an antiferromagnetic (AFM) skyrmion lattice using element-specific pump-probe X-ray microscopy. By tuning spin-orbit torque relative to local pinning potentials, we reveal two regimes: incoherent flow, where mobile skyrmi…

Particle species dependence of elliptic flow fluctuations in Pb-Pb collisions at LHC energies in a multiphase transport model
Jie Wan, Chun-Zheng Wang, Yu-Gang Ma, Qi-Ye Shou, Song Zhang
https://arxiv.org/abs/2507.04497

Particle species dependence of elliptic flow fluctuations in Pb-Pb collisions at LHC energies in a multiphase transport model
The fluctuations of elliptic flow (\vtwo) in relativistic heavy-ion collisions offer a powerful tool to probe the collective behavior and transport properties of the quark-gluon plasma (QGP). The dependence of these fluctuations on particle species further sheds light on the hadronization mechanism. At LHC energies, the ALICE experiment has measured $v_2$ fluctuations for charged pions, kaons, and (anti-)protons via the ratio of \vtwo measured with respect to the spectator plane (\vtwosp) and f…

Imaging nuclear shape through anisotropic and radial flow in high-energy heavy-ion collisions
The STAR Collaboration
https://arxiv.org/abs/2506.17785 https…

Imaging nuclear shape through anisotropic and radial flow in high-energy heavy-ion collisions
Most atomic nuclei exhibit ellipsoidal shapes characterized by quadrupole deformation $β_2$ and triaxiality $γ$, and sometimes even a pear-like octupole deformation $β_3$. The STAR experiment introduced a new "imaging-by-smashing" technique [arXiv:2401.06625, arXiv:2501.16071] to image the nuclear global shape by colliding nuclei at ultra-relativistic speeds and analyzing outgoing debris. Features of nuclear shape manifest in collective observables like anisotropic flow $v_n$ and radial flow…

Extraction of ground-state nuclear deformations from ultra-relativistic heavy-ion collisions: Nuclear structure physics context
J. Dobaczewski, A. Gade, K. Godbey, R. V. F. Janssens, W. Nazarewicz
https://arxiv.org/abs/2507.05208

Extraction of ground-state nuclear deformations from ultra-relativistic heavy-ion collisions: Nuclear structure physics context
The collective-flow-assisted nuclear shape-imaging method in ultra-relativistic heavy-ion collisions has recently been used to characterize nuclear collective states. In this paper, we assess the foundations of the shape-imaging technique employed in these studies. We conclude that, on the whole, the discussion regarding low-energy nuclear physics is confusing and the suggested impact on nuclear structure research is overstated. Conversely, efforts to incorporate existing knowledge on nuclear s…

Quarkonia collectivity in large collision systems with ALICE
Chi Zhang (for the ALICE collaboration)
https://arxiv.org/abs/2509.06240 https://arxiv.org/pdf…

Quarkonia collectivity in large collision systems with ALICE
Quarkonium production is one of the golden probes to study the quark--gluon plasma (QGP). Among many observables, the measurement of azimuthal anisotropies in quarkonium production sheds light on the collective behavior of heavy-flavor particles in a strongly interacting medium. In particular, the measurements of the elliptic flow ($v_{2}$) of quarkonia in Pb--Pb collisions at the LHC provide us direct evidence of heavy quark thermalization in the QGP. In these proceedings, new results of inclu…

Correlation between particle spectra and elliptic flow
Tribhuban Parida, Rupam Samanta, Jean-Yves Ollitrault
https://arxiv.org/abs/2506.18690 https://

Correlation between particle spectra and elliptic flow
We introduce a new observable to probe the collective nature of the radial expansion of the quark-gluon plasma. This observable, dubbed $v_{02}(p_T)$, represents the correlation of the spectrum with elliptic flow, in the same way as the recently measured $v_0(p_T)$ represents the correlation of the spectrum with the transverse momentum per particle. The advantage of $v_{02}(p_T)$ over $v_0(p_T)$ is that it is measured using a three-particle cumulant, as opposed to a pair correlation, which sign…