1396 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 addresses the inverse Feshbach problem by demonstrating that reconstructing a full Hamiltonian from a specific energy-dependent effective Hamiltonian reduces to solving coupled polynomial algebraic equations, a process shown to be feasible via computer-assisted symbolic manipulation for small values of .
This paper presents an alternative formulation called the enhanced Generator Coordinate Method (eGCM) that overcomes the flaws of previous implementations—specifically its inability to correctly describe interference and entanglement—to provide a robust microscopic framework for studying nuclear fission and many-nucleon transfer reactions.
This paper demonstrates that pion-catalyzed reactions, rather than nucleon coalescence or statistical hadronization, are the dominant mechanism for light (anti-)nuclei production in high-energy collisions, as evidenced by a relativistic kinetic model that successfully reproduces experimental pion-nucleus femtoscopic correlation data while other models fail.
This paper identifies significant deviations in high-energy tree-level scattering rates within thermal QCD compared to standard approximations, revealing that these discrepancies bias current jet-medium transport coefficient () constraints and providing a framework to quantify the resulting theoretical systematic uncertainty for Bayesian analyses in Monte Carlo simulations.
This paper revisits tree-level gluon-gluon scattering in thermal QCD to identify deviations from standard approximations, thereby establishing a framework for quantifying theoretical systematic uncertainties to improve Bayesian jet-medium Monte Carlo simulations.
This paper establishes a systematic theoretical foundation for quarkonium dynamics in the quark-gluon plasma by deriving coupled singlet-octet Boltzmann transport equations directly from universal Lindblad equations within pNRQCD, thereby extending semiclassical descriptions beyond the small-dipole approximation and identifying additional collision terms absent in previous rotating-wave approximations.
This study demonstrates that in neutron stars containing hyperons and resonances, density-induced conversion of neutrons into neutral dark baryons is self-consistently determined by chemical equilibrium rather than Higgs exchange, leading to suppressed dark-baryon abundances and equation-of-state modifications that constrain lighter dark-baryon masses against observed massive pulsar data.
This paper introduces a generative AI framework using denoising diffusion models to reconstruct the neutron-star equation of state by learning an inspectable prior from nuclear theory while exactly enforcing physical constraints, thereby resolving the ill-posed inverse problem of inferring matter properties from sparse observational data without biasing the results.
This study predicts the existence of -nuclear bound states across various nuclei using in-medium mass shifts from virtual loops, revealing a universal level-spacing pattern that decreases with nuclear mass and could be verified in future experiments at the upgraded JLab facility.
By incorporating a more precise mass measurement of Cr and new spectroscopic factors to revise the V()Cr reaction rate, this study demonstrates that the resulting 69% increase in the rate significantly boosts Ti yields in proton-rich core-collapse supernova ejecta, thereby reconciling previous conflicting sensitivity analyses.