1148 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 an analytical framework using a self-similar plasma expansion model to derive a closed-form expression for the effective reaction energy window and fusion reactivity of non-thermal ions accelerated by Target Normal Sheath Acceleration, demonstrating that conventional thermal Gamow window interpretations are insufficient for accurately describing laser-driven nuclear reactions.
This paper analyzes four formulations of perfect spin hydrodynamics for spin-1/2 particles, demonstrating that they constitute a divergence-type theory which is both nonlinearly causal and stable through a nonperturbative approach utilizing exact distribution functions.
This paper provides an introductory overview of nuclear structure, covering basic observables, a qualitative description of nuclear forces, and an outline of widely used models for interpreting experimental data in terms of interacting protons and neutrons.
This paper determines the asymptotic normalization coefficients for the Li H channels by analyzing elastic -H scattering data using three consistent methods, yielding average values of fm and fm that confirm the expected relationship with mirror nuclei.
Using a unified purely hadronic equation of state with an incompressibility of 230 MeV, the study successfully reproduces proton flow data in Au+Au collisions up to 4.3 GeV but fails at 4.5 GeV, providing circumstantial evidence for the onset of partonic degrees of freedom and the hadron-quark phase transition.
This study reanalyzes the inelastic excitation of the one-neutron halo nucleus C using a three-body CDCC model to demonstrate that while breakup effects are crucial for describing elastic scattering, the current theoretical framework still fails to fully reproduce the experimental inelastic angular distribution, suggesting the need to investigate additional reaction mechanisms.
This study systematically analyzes the sensitivity of Ag(,xn) reaction cross sections to statistical-model inputs using TALYS 2.0, revealing that the relative importance of level-density models, pre-equilibrium mechanisms, and -optical potentials varies significantly across different reaction channels, with no single parameter combination optimally describing all investigated processes.
This paper investigates the impact of a novel flavor-mixing interaction arising from vacuum polarization on the parton distribution functions of charged kaons and pions within the U(3) Nambu--Jona-Lasinio model, demonstrating that these mixing effects, which are proportional to quark effective mass differences, significantly improve the agreement of theoretical predictions with experimental data at specific momentum fractions.
This study presents the first microscopic characterization of fission fragment spin-parity distributions using time-dependent Hartree-Fock-Bogoliubov calculations, revealing that dynamical pair breaking significantly populates unnatural-parity states and creates parity patterns dependent on fragment mass parity, thereby challenging the equiprobable assumptions of current statistical de-excitation models.
This paper demonstrates that applying a large boost to a hydrodynamic system alters the convergence of its long-wavelength expansion by shifting the limiting nonhydrodynamic singularity to the near-light-cone region of the rest-frame spectrum, where the rescaled convergence scale is governed by the theory's microscopic spectral structure.