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 critiques the standard formalism for calculating the isospin breaking correction in superallowed beta decays for violating nucleon basis independence and proposes a new perturbative "generating function approach" to achieve the precision required for testing Cabibbo unitarity.
This paper demonstrates that the computability of Generalized Parton Distributions (GPDs) in Lattice QCD can be extended to the critical regions by relaxing large momentum expansion conditions at high , thereby enabling the first lattice observation of the expected partonic threshold behavior and providing new predictions for GPDs in the distribution-amplitude-like region.
This study employs a hybrid transport model to demonstrate that the observed elliptic anisotropy in high-multiplicity jets arises primarily from hadronic rescattering driven by initial geometric eccentricity, thereby establishing a geometry-response mechanism for jet collectivity while highlighting the sensitivity of jet substructure variables to initial spatial configurations.
This paper utilizes a species-resolved anisotropy-response scaling framework to demonstrate that the meson in high-multiplicity p+Pb collisions exhibits a single-meson-like response with weak final-state sensitivity, thereby distinguishing its formation dynamics from a molecular structure and establishing this scaling method as a novel experimental probe.
This paper challenges the long-held assumption that nuclear modifications do not affect the longitudinal-transverse structure-function ratio by demonstrating, through a convolution model of nucleon Fermi motion in the deuteron, that the mixing of longitudinal and transverse components and differing -dependencies lead to significant nuclear effects that are currently being investigated experimentally at Jefferson Lab.
This paper employs a self-consistent Skyrme-Hartree-Fock-BCS approach incorporating axial octupole deformation and pairing correlations to theoretically predict a low-energy Th isomer transition with a significantly enhanced sensitivity () to temporal variations in the fine-structure constant.
This paper establishes a systematic formalism for matching long-wavelength correlations between incoming nuclear ground states and final-state multi-particle observables in relativistic collisions by constructing detector correlators from asymptotic energy flows and mapping them to multipole-operator correlators derived from small- QCD.
This paper demonstrates that a single non-relativistic quantum particle linearly coupled to a thermal bath can exhibit emergent hydrodynamic behavior at late times, where spatial decoherence allows the reduced density matrix to be approximated by dissipative equations that asymptotically reduce to the Navier-Stokes equations for a compressible fluid with drag.
This paper establishes a theoretical framework for analyzing Abelian charge fluctuations in nuclear collisions by deriving analytical expressions for cumulants in the canonical ensemble and incorporating local multi-particle interactions, which successfully reproduce STAR and HADES experimental data by revealing the decisive role of repulsive two-proton interactions at high energies and attractive three-particle interactions at lower energies.
This paper presents the first global determination of fragmentation functions for the exotic-hadron candidate using Belle collaboration data, revealing that its high-energy behavior is dominated by an configuration, which suggests a transition from its low-energy tetraquark or molecular description to a quark-antiquark state.