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 presents the first dispersive extraction of light-meson resonance poles from scattering data using S-matrix informed neural networks (SINNs) that enforce fundamental physical principles like unitarity and analyticity without relying on specific amplitude parametrizations.
This paper introduces S-matrix informed neural networks (SINNs) combined with a novel data selection procedure to reconstruct scattering amplitudes from inconsistent experimental data while strictly adhering to physical first principles, demonstrated through a robust application to scattering that yields reusable amplitudes with correlated uncertainties.
This paper presents the first self-consistent theoretical study of competing and reactions using a modified potential cluster model, determining a significantly higher transition temperature of where proton capture overtakes neutron capture and demonstrating substantial shifts under non-thermal Tsallis statistics.
This paper summarizes recent STAR collaboration results from twenty-five years of RHIC operation, highlighting key findings in four areas: exotic-state searches and ultra-peripheral collisions, the onset of quark-gluon plasma signatures in small systems, radial flow and its fluctuations, and polarization and spin correlations.
This paper demonstrates that spatially varying matter potentials can suppress or significantly delay fast neutrino flavor conversions in supernovae, revealing a critical variation rate beyond which instabilities are stabilized and highlighting the necessity of accounting for matter inhomogeneity in supernova models.
This study employs an extended thermal pairing plus phonon damping model to demonstrate that the low-energy upbend resonance originates from non-collective particle-hole excitations that emerge only at finite temperatures, thereby invalidating the Brink-Axel hypothesis in the low-energy region and establishing a new global relation between resonance strength and mass number.
This paper presents a precise theoretical calculation of the total and differential cross sections for radiative inverse beta decay using heavy baryon chiral perturbation theory, providing sub-permille accuracy essential for interpreting data from current and future reactor antineutrino experiments like JUNO.
This paper presents a complete, high-precision calculation of radiative corrections to the inverse beta decay reaction using heavy-baryon chiral perturbation theory, incorporating quantum electrodynamics, chromodynamics, and electroweak contributions to provide updated cross-section predictions essential for reactor neutrino flux normalization, oscillation parameter determination, and new physics searches.
This paper presents a compact, model-independent effective field theory formulation for neutrinoless double-beta decay that explicitly derives the dimensionally explicit half-life expression and a positivity bound for the coherent interference between two long-range scalar mechanisms, accounting for their complex coupling phases and specific nuclear matrix element ratios.
Motivated by the high mass of the black-widow pulsar PSR J0952−0607, this study constrains relativistic mean-field models containing hyperons by demonstrating that increasing the nonlinear -meson vector self-coupling parameter suppresses hyperon fractions and identifying the specific parameter space compatible with the pulsar's observed mass and rapid rotation.