931 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 elucidates how the Chiral Quark Soliton Model (CQSM), by uniquely incorporating non-local quark-quark correlations arising from spontaneous chiral symmetry breaking, successfully predicts various nucleon parton distribution functions, particularly the flavor asymmetry of sea-quark distributions, outperforming traditional effective meson theories like the Skyrme model.
This paper presents the formal developments for calculating the mechanical properties of the nucleon, including its mass, energy density, and pressure distribution, within a chiral confining model where massive constituent quarks interact with a pion cloud, utilizing the von Laue stability condition to determine trial states.
This paper investigates the evolution of nucleon properties within nuclear matter using the chiral confining model, revealing how the interplay of confinement and chiral symmetry breaking drives mass modifications and repulsive three-body forces essential for nuclear saturation and neutron star equations of state.
This paper outlines a methodology combining machine learning, improved predictive modeling that accounts for nuclear deformation, and experimental data to address the lack of reliable neutron cross-section data for unstable fission products, with the goal of producing evaluated files for future ENDF/B releases.
By combining Bayesian inference with hydrodynamic simulations and Large Hadron Collider data from Xe-Xe and Pb-Pb collisions, researchers successfully reconstructed the nearly maximally triaxial ground-state shape of the Xe nucleus, thereby establishing high-energy collider experiments as a quantitative tool for probing proton-neutron correlations driven by quantum chromodynamics.
This paper employs a thermodynamic T-matrix approach informed by recent lattice QCD data to analyze bottomonium dynamics in the quark-gluon plasma, revealing that while minor potential refinements suffice to describe correlation functions, stronger interference effects are required at larger quark-antiquark separations to accurately determine bound-state survival temperatures and spectral properties.
This paper demonstrates that by employing a collision kernel conserving energy-momentum and particle current, the poles of the relativistic kinetic equation yield a dispersion relation with a systematic gradient structure where spatial and temporal gradients appear in unison, thereby ensuring causality in truncated hydrodynamic theories.
This paper investigates the formation of three-body bound states in the continuum (BICs) using a one-dimensional model of two identical bosons and a distinguishable particle, demonstrating that while both interaction parameters and mass ratio variations can induce BICs, the latter produces a more regular pattern, suggesting that the BIC formation mechanism is more sensitive to the system's kinematic structure than to specific two-body interaction details.
This study utilizes an expanding elliptic fire-cylinder model to successfully describe the transverse momentum spectra and elliptic flow of light hadrons produced in peripheral Au+Au collisions across the RHIC Beam Energy Scan range, demonstrating that parameters constrained by pion data can consistently predict the behavior of kaons and protons without further adjustment.
This lattice simulation study reveals that weak acceleration in gluodynamics transforms the finite-temperature confinement-deconfinement phase transition into a spatial crossover where coexisting phases are separated by a boundary accurately described by the Tolman-Ehrenfest law, suggesting such spatial transitions may occur near Schwarzschild black hole horizons.