1145 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 demonstrates that while nuclear matter containing only nucleons remains stable against inhomogeneous pion condensation despite exhibiting a "moat regime" in pseudoscalar correlations, the inclusion of hyperons at high densities can drive these correlations negative, triggering an instability toward an inhomogeneous pion condensate that significantly alters the neutron star equation of state.
This study demonstrates that while Monte Carlo neutrino transport in neutron star mergers confirms thermalization in hot, dense regions, significant non-equilibrium deviations in moderately warm zones reveal that energy-averaged agreement with thermal assumptions is insufficient for accurately predicting weak interaction rates and composition evolution.
This paper demonstrates that incorporating Urca processes involving parity partners of nucleons and hyperons within a parity doublet model significantly improves the agreement between neutron star cooling simulations and observed surface temperatures and ages.
This paper introduces three optimized Garvey-Kelson mass relations tailored for predicting corner, central, and overall nuclear masses with high accuracy, demonstrating their potential to significantly improve machine learning-based mass models and extrapolation capabilities.
This study employs the Gamow shell model in the coupled-channel representation to analyze the N(p,)O reaction, finding that while the theoretical model agrees well with experimental data, the resulting derived carbon and nitrogen abundances remain significantly lower than the values indicated by recent solar neutrino observations.
This paper demonstrates that -decay half-lives serve as a novel and effective probe for the emergent magic number , revealing a pronounced shell gap in Calcium and Potassium isotopes while indicating its absence in Argon and Chlorine.
This study employs the triaxial projected shell model to systematically investigate high-spin band structures in odd-mass Nb and Tc nuclei, successfully identifying an unresolved fourth band in Nb as a second band arising from a configuration and predicting its properties across the isotopic chain.
This study utilizes a covariant statistical fireball model to analyze Au+Au collisions at RHIC energies, revealing that longitudinal flow induces a kinematic degeneracy that artificially elevates kinetic freeze-out temperatures above the QCD crossover limit, thereby suggesting large longitudinal velocities are physically disfavored, while simultaneously identifying a net baryon density maximum below 11.5 GeV enhanced by dynamical flow.
This study investigates the deformation properties of the Ru isotopes using Covariant Density Functional Theory and a phenomenological Bohr-Mottelson Hamiltonian, revealing a shape phase transition, evidence of shape coexistence and mixing among various configurations, and explaining -band staggering through these mixing effects.
Using an ab initio approach combining the multi-reference in-medium similarity renormalization group and the quantum-number projected generator coordinate method with chiral two- plus three-nucleon interactions, this study systematically reproduces the low-lying properties of neutron-rich nuclei around and delineates the specific boundaries of the island of inversion.