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 reframes neural operators as efficient function interpolators by introducing an auxiliary base-space, demonstrating through analytic benchmarks and a nuclear mass model application that they achieve state-of-the-art accuracy with significantly fewer parameters and faster training times compared to standard neural networks.
Using a regulated low-momentum contact potential within the Green's function formalism, this study calculates the quasiparticle properties of a single hyperon in symmetric nuclear matter, finding a binding energy of $-29.55$ MeV at saturation density that agrees with empirical data and demonstrating that dynamical correlation contributions from repeated in-medium scattering are essential for reproducing the observed binding scale.
This work presents a kinetic approach that dynamically incorporates transformations between nucleons and light nuclei as well as the Mott effect to successfully reproduce the experimental yields of light nuclei in medium-energy heavy-ion collisions, and attributes the enhancement of alpha-particle production at low energies to their high binding energy, which resists dissolution in the nuclear medium.
This work investigates the dynamics of dilute nuclear matter containing light clusters using a linear response approach and demonstrates that in-medium Mott effects significantly alter spinodal instabilities and growth rates, which has important implications for fragment formation in heavy-ion collisions and astrophysical scenarios.
This study uses RHIC data to constrain in-medium mass modifications of protons and antiprotons and predicts that the detectability of their opposing correlations is highly sensitive to the temporal distribution of the source and is strongly enhanced in events with a larger ratio of antiproton to proton yield.
This article demonstrates that the extended three-flavor quark-meson-diquark model, particularly through the inclusion of vector and axial-vector mesons, successfully describes massive hybrid stars with masses exceeding and radii consistent with astrophysical observations by generating a sufficiently stiff equation of state and a double-peak structure in the speed of sound, which is driven by the decreasing mass of the strange quark at high densities.
This overview summarizes novel theoretical and experimental advances, particularly data from the INDRA-FAZIA collaboration and calculations from the BUU transport model, to constrain the density dependence of the nuclear symmetry energy via isospin transport in heavy-ion collisions within the Fermi energy range.
This work investigates the cause of the non-monotonic magnetic-field-dependent charged-pion excitations in the NJL model and shows that while certain mass-generation schemes cannot reproduce the reversal observed in lattice calculations, direct determinant and near-pole methods robustly confirm this behavior as a genuine quasiparticle mixing effect between pions and rho mesons.
This paper investigates leading Generalized Transverse Momentum Dependent parton distributions (GTMDs) within the bag model to demonstrate theoretical consistency, establish analytical sum rules for orbital angular momentum via the Ji sum rule and GTMD , and reveal a deeper connection between orbital angular momentum and pretzelosity.
This paper utilizes energy conservation laws and gravity-hydrodynamics analysis to determine the low-frequency analytic structure of stress-energy correlation functions in Quark-Gluon Plasma, thereby deriving new Kubo formulae for transport coefficients and relaxation times while addressing subtleties in limit-taking procedures.