⚛️ Category

nucl-th

1634 papers

Nuclear theory sits at the fascinating intersection of particle physics and the forces that hold our universe together. This field explores how protons and neutrons bind inside atomic nuclei, seeking to understand the fundamental interactions that govern matter at its most dense and energetic levels. While the mathematics involved can be incredibly complex, the core questions are deeply human: how does the universe function at its smallest scales, and what happens when we push matter to its limits?

At Gist.Science, we make these cutting-edge discoveries accessible by processing every new preprint published in this category on arXiv. Our team transforms dense academic manuscripts into clear, plain-language summaries alongside detailed technical overviews, ensuring that both experts and curious readers can grasp the latest breakthroughs without getting lost in the jargon. Below are the latest papers in nuclear theory, distilled and ready for you to explore.

⚛️ nuclear theory

Diffusion and shear viscosity coefficients of hot isospin asymmetric strange hadronic matter using a chiral SU(3) model

Using a chiral SU(3) model and the Chapman-Enskog expansion, this study calculates the diffusion and shear viscosity coefficients of hot isospin asymmetric strange hadronic matter, revealing that finite strangeness significantly enhances shear viscosity while isospin asymmetry strongly influences diffusion coefficients but has only a marginal effect on shear viscosity.

Amruta Mishra, Shujun Zhao, Tetsufumi Hirano2026-08-04
⚛️ nuclear theory

Probing Quadruple Deformation in Transitional Nuclei via Angular Momentum Projection

This paper utilizes angular momentum projection within the interacting boson model to demonstrate that KK-mixing is negligible in transitional nuclei and reveals that increasing angular momentum stretches quadrupole deformation, offering a geometric explanation for Jacobi-type transitions and low-spin B(E2)B(E2) anomalies in nuclei such as 160^{160}Gd, 162^{162}Dy, and 170^{170}Os.

Xian-Zhi Zhao, Sheng-Nan Wang, Yu Zhang2026-08-04
⚛️ nuclear theory

The (2+1)(2+1)-dimensional Gross-Neveu-Yukawa model at finite temperature, density, and magnetic field within the Functional Renormalization Group

Using the Functional Renormalization Group with a hydrodynamical algorithm, this study investigates the (2+1)-dimensional Gross-Neveu-Yukawa model at finite temperature, density, and magnetic field, revealing that strong magnetic fields induce magnetic catalysis and dimensional reduction while weak fields at high chemical potential produce de Haas–van Alphen oscillations and multiple first-order phase transitions alongside a shifting critical endpoint.

Justin L. P. Mauldin, Dirk H. Rischke2026-08-04
⚛️ nuclear experiments

Effects of light-cluster degrees of freedom on collective flows in heavy-ion collisions at FOPI energies

Using a lattice Boltzmann-Uehling-Uhlenbeck transport model with a kinetic approach for light-cluster formation, this study demonstrates that explicitly including dynamical light-cluster degrees of freedom significantly modifies proton collective flows at beam energies below 600 A MeV and successfully reproduces the nucleon-number scaling of light nuclei flows, thereby highlighting the necessity of dynamical cluster treatment for interpreting heavy-ion collision data in this energy regime.

Xin Li, Si-Pei Wang, Rui Wang, Zhen Zhang, Jie Pu, Chun-Wang Ma, Lie-Wen Chen2026-08-04
⚛️ nuclear theory

Neural Quantum States for Light Nuclei with Chiral Two- and Three-Body Interactions

This paper demonstrates that neural network-based trial wave functions, designed to efficiently incorporate three-body interactions and interparticle correlations, significantly improve the accuracy of variational Monte Carlo calculations for light nuclei, reducing ground-state energy deviations from Green's Function Monte Carlo results from 3.7% to 0.45% for tritium.

Pengsheng Wen, Alexandros Gezerlis, Jeremy W. Holt2026-08-03
⚛️ nuclear experiments

Convergence of the $ppp$ correlation function within the hyperspherical adiabatic basis

This paper analyzes the convergence of the hyperspherical adiabatic basis for the $ppp$ correlation function at energies beyond the correlation peak, demonstrating that including three-body states up to Jπ=21/2−J^{\pi}=21/2^- is essential for accurately describing the correlation tail and achieving excellent agreement with experimental data.

E. Garrido, A. Kievsky, R. Del Grande, L. Serksnyte, M. Viviani, L. E. Marcucci2026-08-03
⚛️ nuclear theory

Explicitly on-shell currents in relativistic mean field models

This paper demonstrates that defining currents via free-nucleon creation and annihilation operators eliminates Dirac algebra ambiguities in relativistic mean field models, while showing that remaining genuine ambiguities arising from the mean field dependence can be resolved through a consistent background-field dependent current, thereby removing previously reported large discrepancies in coherent pion photoproduction.

Alexis Nikolakopoulos, Ryan Plestid2026-08-03
🔭 astrophysics

1^1S0_0 pairing gaps, chemical potential and entrainment matrix in superfluid neutron-star cores for the Brussels-Montreal functionals

This paper presents fully self-consistent numerical calculations of temperature and velocity-dependent 1^1S0_0 pairing gaps, chemical potentials, and the entrainment matrix for superfluid neutron-star cores using the Brussels-Montreal BSk24 functional, thereby providing consistent microscopic inputs for astrophysical modeling.

Valentin Allard, Nicolas Chamel2026-07-31