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 develops a formal eikonal expansion for classical gluon fields, demonstrating that while the method works straightforwardly in the weak field limit to relate potentials to currents, it fails in the strong field regime due to nonlinear mixing of orders, a problem resolved by integrating out high longitudinal momentum modes to yield a renormalized effective action.
Using a thermodynamic T-matrix approach with a separable potential, state-of-the-art heavy-quark selfenergies, and particle-hole excitations, this study successfully reproduces lattice QCD results for charmonium spatial correlators at finite momentum, revealing that zero modes are essential for explaining the increase in Euclidean correlators but not for the suppression of spatial correlators.
This study demonstrates that femtoscopic correlations arising from quantum statistics and final-state interactions can induce significant artificial spin-spin correlation signals in low-momentum and pairs, necessitating careful correction to avoid misinterpreting experimental data from high-energy collisions.
This paper incorporates the resonance into heavy-baryon chiral perturbation theory calculations to show that it restores power counting for the axial-vector charge, significantly reduces the QED radiative correction to the ratio, and increases pion-induced radiative corrections to inverse beta decay by a factor of 1.2–1.3.
This study employs microscopic time-dependent Hartree-Fock theory to analyze quasifission dynamics in 18 hot fusion reactions for synthesizing superheavy nuclei (Z=112-120), revealing that shell effects (specifically spherical 208Pb and octupole-deformed Z=88/N=136) govern fragment formation while heavier projectiles accelerate quasifission, thereby explaining the reduced fusion probabilities observed in attempts to create elements Z=119 and Z=120.
This paper quantifies how localized, thermodynamically consistent deformations of the squared sound speed in a BSk24-anchored neutron-star barotropic model induce mass-dependent, sign-asymmetric changes in stellar structure and tidal deformability, demonstrating that such phenomenological interventions propagate through reconstruction to alter central states and create distinct core or shell features without implying specific microscopic phase transitions.
This paper presents a quasielastic lepton-nucleus scattering model within the local density approximation that utilizes ab initio spectral functions from infinite nuclear matter, interpolated by neural networks and incorporating final-state interactions, demonstrating good agreement with experimental data for various nuclei while assessing theoretical uncertainties.
This study demonstrates that electron-capture supernovae naturally produce low-mass neutron stars within a narrow gravitational mass range of approximately 1.24–1.265 with minimal dependence on the equation of state, suggesting that the even lighter observed neutron stars likely require alternative formation channels such as low-mass iron-core collapse or ultra-stripped supernovae.
This paper demonstrates that exclusive vector meson production at small serves as a novel probe of nuclear shell structure, as self-consistent nuclear densities derived from the quark-meson coupling model significantly modify coherent diffractive patterns, particularly for intermediate-mass nuclei like calcium isotopes where production offers a clean signal free from saturation effects.
This study demonstrates that the general relativistic trace source strength serves as a highly correlated diagnostic for topological scalar field responses in neutron stars, revealing that such topological configurations induce systematic radius reductions of approximately 1 km—comparable to current NICER uncertainties—while remaining dominated by matter contributions.