1634 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 introduces a 2026 open-source electronic edition of D. A. Varshalovich's classic "Quantum Theory of Angular Momentum," which retains the original 1988 content while integrating modern enhancements such as Python-based symbolic tools, AI-verified results, and interactive digital features under a CC-BY 4.0 license.
This study utilizes the UrQMD transport model to analyze baryon stopping in low-energy Au+Au collisions, revealing that a significant fraction of mid-rapidity protons originate from initial neutrons via isospin conversion, a process that deviates from chemical equilibrium assumptions below 10 GeV and is coupled with the onset of nuclear transparency.
This paper develops a finite-temperature proton-neutron BCS framework to demonstrate that thermal excitations can induce a nonmonotonic reentrance of proton-neutron pairing in hot, asymmetric nuclei by partially lifting Pauli blocking, a phenomenon that may significantly influence stellar weak-interaction rates in astrophysical environments.
Using the Schwinger proper-time Nambu-Jona-Lasinio model, this study investigates the electromagnetic structure of the meson in symmetric nuclear matter, revealing that its charge, magnetic, and quadrupole form factors are suppressed with increasing density and that its in-medium charge radius is approximately 0.74 fm.
This paper proposes a unified effective field theory framework formulated at renormalization group fixed points that successfully connects hadronic spectroscopy, dense baryonic matter, and compact star physics by naturally reproducing parity-doubling spectra and reconciling gravitational-wave constraints with massive neutron stars through chiral-invariant nucleon masses and walking vector couplings.
Using the AMPT-HC model, this study proposes a phenomenological direct-production mechanism for resonances in Au+Au collisions at GeV to explain how early production and subsequent daughter rescattering in a high-baryon-density medium lead to a predicted increase in the ratio toward central collisions.
This paper reports the first proof-of-principle demonstration of precision -delayed charged-particle spectroscopy at FRIB using , successfully reconstructing its decay scheme, assigning spins and parities to excited states in via spectral interference patterns, and comparing the extracted -strength distribution with shell-model calculations.
This paper reveals that in magnetized two-flavor color-superconducting quark matter, Landau quantization suppresses conventional Fermi-surface contributions to the Meissner effect, leading to a topologically constrained response governed by the quantum metric of the lowest Landau level that scales with the pairing gap rather than the chemical potential, with potential implications for magnetar oscillations.
This paper presents an EOS-driven extension of the NSCool thermal evolution code that unifies the treatment of nucleonic, hyperonic, and quark degrees of freedom within a single workflow, incorporating updated neutrino emissivity and heat capacity calculations for mixed-phase compact stars.
This paper demonstrates that -factorization in the Color Glass Condensate represents only the zeroth order of a systematic gradient expansion, revealing that higher-order corrections involving transverse derivatives of source distributions generate intrinsic initial-state momentum anisotropies and a more complete energy-momentum tensor that are missed by leading-order approximations.