1159 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 explains the non-monotonic dependence of the charged pion mass on magnetic fields observed in lattice QCD as a result of strong level repulsion caused by the mixing between the lowest Landau level charged pion and the longitudinally polarized charged rho meson, an effect dynamically amplified by the rapid suppression of the rho-meson wave function renormalization near the pole.
This paper develops and validates an accurate, efficient three-body hyperspherical harmonics formalism combined with the R-matrix method to predict the properties of the two-neutron halo nucleus C, demonstrating that the projection method outperforms the supersymmetric approach in enforcing the Pauli principle while introducing algorithmic optimizations that significantly reduce computational costs.
This paper presents a convolutional neural network trained on improved Gaussian data to reconstruct spectral densities from imaginary-time Green's functions, demonstrating that while it outperforms the standard Maximum Entropy method on data similar to its training set, the latter remains superior for identifying physical features in complex models like the 1d Hubbard and 2d SSH systems.
The paper demonstrates that hadronic nucleus-nucleus cross sections are insensitive to nucleon size when geometric inflation artifacts are corrected, thereby establishing them as robust probes for extracting neutron skin thickness and constraining nuclear symmetry energy.
This paper proposes that the rapid four-day cooling of the neutron star MAXI J1752$-$457 following a superburst provides the first evidence of a nuclear Urca process, where enhanced neutrino emission from electron capture and decay cycles in the star's ocean dominates the thermal evolution.
Using the antisymmetrized molecular dynamics model, this study constrains the nuclear symmetry energy at subsaturation densities (0.2 to 0.57) by analyzing the electric dipole polarizability and neutron skin thickness of , favoring effective interaction parameters of MeV and MeV.
This paper systematically investigates cold nuclear matter effects on charmonium production in fixed-target proton-nucleus collisions by analyzing the interplay of initial-state energy loss, nuclear shadowing, and final-state absorption using existing data to predict normal absorption levels for upcoming experiments at CERN and FAIR.
This study employs a Bayesian ensemble of unified neutron-star equations of state to demonstrate that the structure and extent of nuclear pasta layers are primarily governed by the symmetry-energy slope parameter, thereby enabling the first equation-of-state-driven analysis of crustal quasi-periodic oscillations and revealing their strong correlation with the curvature of the symmetry energy.
To resolve the significant tension between LHCb and BESIII measurements of the radiative-decay ratio in the region, this paper proposes a two-state scenario involving a shallow bound state and a nearby charmonium candidate (), which successfully describes the experimental data and predicts specific helicity-angle distributions for future verification.
This paper develops a microscopic optical potential for nucleon-nucleus scattering based on Brueckner-Hartree-Fock theory and the local density approximation, demonstrating its quantitative agreement with phenomenological models and experimental data for neutron and proton scattering on calcium isotopes below 200 MeV.