957 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.
This paper analyzes systematic errors arising from higher-twist contamination and kinematic effects in extracting the leading-twist structure function from inclusive DIS on a tensor-polarized deuteron, comparing two target polarization directions to determine that while both options yield comparable errors at Jefferson Lab 12 GeV kinematics, the momentum transfer direction is preferred at higher values.
This paper introduces a Bayesian framework to systematically quantify many-body truncation uncertainties in *ab initio* calculations of finite nuclei using many-body perturbation theory and chiral effective field theory interactions, thereby advancing the comprehensive assessment of theoretical errors in nuclear structure research.
This paper introduces a method to incorporate -process heating into hydrodynamic simulations of neutron star merger disk outflows, revealing that this feedback mechanism increases unbound ejecta mass by approximately 10% and significantly enhances the radial velocity of low-electron-fraction material.
This paper employs renormalizable two- and three-flavor quark-meson-diquark models to analyze color superconductivity and pion condensation in dense quark matter, demonstrating that BCS gaps approach a constant and the speed of sound converges to the conformal limit at high chemical potentials while correctly accounting for global symmetry breaking and Goldstone boson counting.
This study utilizes a Skyrme energy density functional framework constrained by terrestrial double- hypernuclear data and pseudodata to demonstrate that including repulsive -wave and three-body forces yields equations of state consistent with neutron star observations, thereby highlighting the necessity of future experimental data on heavier hypernuclei.
This paper demonstrates that a significantly enhanced isovector nuclear spin-orbit interaction, inferred from CREX experimental data on Ca, resolves the PREX-CREX puzzle and explains the emergence of new magic numbers in neutron-rich nuclei while preserving the successful description of standard nuclear properties.
This study employs a Bayesian approach to generate hybrid star equations of state combining hadronic and quark matter models, demonstrating that vector and multiquark interactions are essential for supporting massive neutron stars consistent with NICER and pQCD constraints while predicting a positive trace anomaly in their cores.
This study employs Bayesian inference with hadronic and quark matter models to demonstrate that while the presence of large quark cores in 1.4 solar mass neutron stars depends on the specific quark model used, both frameworks predict quark matter in 2 solar mass stars, with the mass-radius curve slope serving as a key indicator of non-nucleonic matter.
Using a lattice Boltzmann-Uehling-Uhlenbeck transport model with a density-, momentum-, and isospin-dependent NLO Skyrme pseudopotential, this study analyzes proton anisotropic flows in Au+Au collisions at to demonstrate their strong sensitivity to momentum-dependent mean-field potentials and the symmetric nuclear matter incompressibility, while highlighting the need to incorporate higher-order equation-of-state parameters and in-medium cross-section modifications for future Bayesian extractions of nuclear matter properties.
This paper proposes a thermal model incorporating a common local spin equilibrium for spin-1/2 and spin-1 particles to explain the simultaneous longitudinal polarization of hyperons and positive spin alignment of vector mesons in heavy-ion collisions, noting that while the model reproduces observed trends, it currently lacks full quantitative agreement with experimental data.