nucl-th papers | Gist.Science

Shear viscosity at finite magnetic field for graphene, non-relativistic and ultra-relativistic cases

This paper extends the microscopic calculation of shear viscosity in graphene electron fluids to finite magnetic fields using kinetic theory, revealing that the magnetic field induces anisotropy resulting in five independent viscosity coefficients, with significant suppression of perpendicular and parallel components and maximized Hall effects occurring at specific field strengths that vary across non-relativistic, relativistic graphene, and ultra-relativistic quark fluid systems.

Cho Win Aung, Thandar Zaw Win, Subhalaxmi Nayak, Sabyasachi GhoshThu, 12 Ma⚛️ nucl-th

Ab initio study of the halo structure in $^{11}$ Be

Using nuclear lattice effective field theory with high-fidelity chiral interactions, this study successfully reproduces the ground-state parity inversion and halo structure of $^{11}$ Be, revealing that the valence neutron occupies a $\sigma$ molecular orbital which enhances prolate deformation and creates a diffuse neutron tail distinct from the $\pi$ -orbital occupation in $^{10}$ Be.

Shihang Shen, Serdar Elhatisari, Dean Lee, Ulf-G. Meißner, Zhengxue RenThu, 12 Ma⚛️ nucl-th

Role of tensor forces in nuclei

This paper utilizes realistic internucleon forces, particularly tensor forces, to describe nuclei with $A>4$ by modeling them as clusters of subsystems with specific orbital momenta, thereby explaining phenomena like the $^8$ Be lifetime and the Hoyle state while rejecting the concept of a "power center" in favor of a cluster-based approach.

Yu. P. LyakhnoThu, 12 Ma⚛️ nucl-th

Relaxation of a single-particle excitation in a Fermi system within the diffusion approximation of kinetic theory

This paper numerically investigates the time evolution of single-particle excitations in a Fermi system using a nonlinear diffusion equation, proposing a method to distinguish between the relaxation of the excitation and the nuclear core while revealing discrepancies between the resulting relaxation times and previously estimated kinetic coefficients.

Sergiy V. LukyanovThu, 12 Ma⚛️ nucl-th

Systematic Study on the $\alpha$ -particle preformation factor in the theory of $\alpha$ -decay based on the Tabular Prior-data Fitted Network (TabPFN)

This paper develops a hybrid approach combining the Tabular Prior-data Fitted Network (TabPFN) with the Coulomb and Proximity Potential Model to accurately predict $\alpha$ -particle preformation factors, thereby significantly improving $\alpha$ -decay half-life calculations and suggesting $N=184$ as a neutron magic number for superheavy nuclei.

Panpan Qi, Xuanpeng Xiao, Gongming Yu, Haitao Yang, Qiang HuThu, 12 Ma⚛️ nucl-th

Machine Learning-Driven High-Precision Model for $\alpha$ -Decay Energy and Half-Life Prediction of superheavy nuclei

This paper presents a Bayesian-optimized XGBoost model that accurately predicts the $\alpha$ -decay energy and half-life of superheavy nuclei by integrating key nuclear structural features, outperforming traditional empirical models while providing physical insights through SHAP analysis.

Qingning Yuan, Panpan Qi, Xuanpen Xiao, Xue Wang, Juan He, Guimei Long, Zhengwei Duan, Yangyan Dai, Runchao Yan, Gongming Yu, Haitao YangThu, 12 Ma⚛️ nucl-th

Novae breves from magnetar giant flares: Potential probes of neutron star crusts

This paper investigates how the neutron star equation of state and magnetar mass influence the ejecta properties and light curves of "novae breves"—short-lived optical transients from magnetar giant flares—demonstrating that these features are detectable with current and future facilities, thereby offering a promising method to probe neutron star crusts.

Jiahang Zhong, Qiu-Hong Chen, Yacheng Kang, Hong-Bo Li, Jinghao Zhang, Meng-Hua Chen, Lijing ShaoThu, 12 Ma⚛️ nucl-th

Effective theory of surface oscillations in self-bound superfluid droplets

This paper develops a universal effective field theory for the low-energy surface oscillations of self-bound superfluid droplets, deriving the normal-mode eigenfrequencies, identifying a critical instability for the breathing mode, and quantizing the resulting ripplons to describe multi-ripplon states in systems like Bose mixtures.

Jun Mitsuhashi, Keisuke Fujii, Masaru HongoThu, 12 Ma⚛️ nucl-th

Production of high-spin $\omega_J/\rho_J$ ( $J=2,3,4,5$ ) mesons in $\pi^{-}p$ reactions

Using an effective Lagrangian approach calibrated to existing data, this study successfully reproduces the production cross sections of high-spin $\omega_3$ and $\rho_3$ mesons in $\pi^- p$ reactions and predicts measurable, forward-peaked production rates for their $J=2,4,5$ partners, suggesting their feasibility for observation in future meson-beam experiments.

Ting-Yan Li, Zi-Yue Bai, Xiang LiuThu, 12 Ma⚛️ nucl-ex

The Gamow Golden Rule of Multichannel Resonances

This paper constructs the Gamow Golden Rule for multichannel scattering to derive decay distributions, partial decay constants, widths, and branching fractions for resonances with multiple decay modes, demonstrating the theory's application through two coupled-channel square well potentials.

Rafael de la Madrid, Rodolfo Id BetanThu, 12 Ma⚛️ quant-ph

Improved calculation of radiative corrections to $\tau\to\pi\pi\nu_\tau$ decays

This Letter presents an improved, model-independent calculation of radiative corrections to $\tau\to\pi\pi\nu_\tau$ decays that incorporates structure-dependent effects beyond point-like pions and threshold enhancements, thereby refining the precision of the hadronic-vacuum-polarization contribution to the muon's anomalous magnetic moment derived from tau decay data.

Gilberto Colangelo, Martina Cottini, Martin Hoferichter, Simon HolzThu, 12 Ma⚛️ hep-lat

Radiative corrections to elastic electron-carbon scattering cross sections in comparison with experiment

This paper revisits radiative corrections to elastic electron-carbon scattering cross sections by incorporating transient nuclear excitations and nonperturbative QED effects, finding that while the model qualitatively agrees with experimental data at the lowest energy, it fails to account for dispersion at higher energies.

D. H. Jakubassa-AmundsenThu, 12 Ma⚛️ nucl-th

Electromagnetic tomography of radial flow in the quark-gluon plasma

This paper proposes a novel multimessenger framework that extracts the effective radial flow of the quark-gluon plasma by jointly analyzing thermal photon and dilepton spectra, establishing a measurable quantity that correlates with spacetime-averaged radial velocity and provides a concrete roadmap for probing early-time QGP dynamics at RHIC and the LHC.

Lipei Du, Ulrich HeinzThu, 12 Ma⚛️ nucl-ex

Observation of Robust and Coherent Non-Abelian Hadron Dynamics on Noisy Quantum Processors

This study demonstrates the first observation of robust, coherent non-Abelian hadron dynamics on a noisy 156-qubit quantum processor by simulating a 60-site SU(2) lattice gauge theory using a hardware-efficient encoding, successfully capturing meson propagation and breathing modes while outperforming classical approximation methods in the weak-coupling regime.

Fran Ilčic, Ritajit Majumdar, Emil Mathew, Md. Osama Ali, Nathan Earnest-Noble, Indrakshi RaychowdhuryThu, 12 Ma⚛️ hep-lat

Finite-Size Scaling of Net-Proton Cumulants in Heavy-Ion Collisions: Remarks on the Interpretation of a Recent Analysis

This paper critically examines a recent analysis claiming evidence for a QCD critical end point via finite-size scaling of net-proton cumulants, highlighting methodological issues regarding acceptance windows, multiplicity scaling, and thermodynamic fields that must be addressed for a consistent interpretation.

Roy A. Lacey (Department of Chemistry, Stony Brook University, Stony Brook, NY, USA)Thu, 12 Ma⚛️ nucl-th

Direct observation of three-neutron emission from $^7$ He $^*$ and the search for the trineutron

This paper reports the first direct observation of three-neutron emission from $^7$ He $^*$ , identifying a resonance-like structure consistent with sequential decay via $^6$ He and finding no evidence for a trineutron resonance or significant three-neutron correlations beyond standard two-body interactions.

S. W. Huang, C. Lenain, Z. H. Yang, F. M. Marqués, J. Gibelin, J. G. Li, A. Matta, N. A. Orr, N. L. Achouri, D. S. Ahn, A. Anne, T. Aumann, H. Baba, D. Beaumel, M. Böhmer, K. Boretzky, M. Caamaño, N. Chen, S. Chen, N. Chiga, M. L. Cortés, D. Cortina, P. Doornenbal, C. A. Douma, F. Dufter, J. Feng, B. Fernández-Domínguez, Z. Elekes, U. Forsberg, T. Fujino, N. Fukuda, I. Gašparic, Z. Ge, R. Gernhäuser, J. M. Gheller, A. Gillibert, Z. Halász, T. Harada, M. N. Harakeh, A. Hirayama, N. Inabe, T. Isobe, J. Kahlbow, N. Kalantar-Nayestanaki, D. Kim, S. Kim, S. Kiyotake, T. Kobayashi, D. Koerper, Y. Kondo, P. Koseoglou, Y. Kubota, I. Kuti, C. Lehr, P. J. Li, Y. Liu, Y. Maeda, S. Masuoka, M. Matsumoto, J. Mayer, N. Michel, H. Miki, M. Miwa, B. Monteagudo, I. Murray, T. Nakamura, A. Obertelli, H. Otsu, V. Panin, S. Park, M. Parlog, S. Paschalis, M. Potlog, S. Reichert, A. Revel, D. Rossi, A. T. Saito, M. Sasano, H. Sato, H. Scheit, F. Schindler, T. Shimada, Y. Shimizu, S. Shimoura, H. Simon, I. Stefan, S. Storck, L. Stuhl, H. Suzuki, D. Symochko, H. Takeda, S. Takeuchi, J. Tanaka, Y. Togano, T. Tomai, H. T. Törnqvist, E. Tronchin, J. Tscheuschner, V. Wagner, K. Wimmer, M. R. Xie, H. Yamada, B. Yang, L. Yang, M. Yasuda, Y. L. Ye, K. Yoneda, L. Zanetti, J. Zenihiro, T. UesakaThu, 12 Ma⚛️ nucl-ex

Systematic study of superheavy nuclei within a microscopic collective Hamiltonian: Impact of quantum shape fluctuations

This study employs a microscopic five-dimensional collective Hamiltonian based on relativistic Hartree-Bogoliubov calculations to reveal that quantum shape fluctuations significantly alter the predicted shell effects and shape transitions in superheavy nuclei, notably shifting magic numbers from $N=184, 258$ to $N=182, 256$ and eliminating bound $0^+$ states in transitional regions due to shallow potential wells.

X. Q. Yang, R. Y. Hu, R. N. Mao, J. Xiang, Z. P. LiThu, 12 Ma⚛️ nucl-th

Insensitivity of the Coulomb breakup of halo nuclei to spectroscopic factors

This paper demonstrates that Coulomb breakup cross sections for the one-neutron halo nucleus $^{11}$ Be are insensitive to spectroscopic factors when the asymptotic normalization coefficient is fixed, as confirmed by new calculations using a coupled-channel effective particle-rotor model that accounts for core excitation.

Live-Palm Kubushishi, Pierre CapelThu, 12 Ma⚛️ nucl-th

Quantifying uncertainty in physics-based predictions of rare-isotope production cross sections via Bayesian-inspired model averaging across nuclear mass tables

This paper introduces a Bayesian-inspired model-averaging framework that combines abrasion-ablation calculations from multiple nuclear mass tables to generate statistically weighted predictions and uncertainty estimates for rare-isotope production cross sections, thereby improving accuracy for both interpolation and limited extrapolation in proton-rich fragmentation regimes.

O. B. TarasovThu, 12 Ma⚛️ nucl-ex

Topological structure of the entanglement radius of Yang-Mills flux tubes

This paper expands on previous findings by investigating the topological structure of the entanglement radius $\xi_0$ in (2+1)D Yang-Mills theory, specifically examining how flux tube entanglement entropy behaves when the entangling region's cross-sectional length is comparable to the flux tube's intrinsic thickness.

Rocco Amorosso, Sergey Syritsyn, Raju VenugopalanThu, 12 Ma⚛️ hep-lat

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