951 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 a unified theoretical description of experimental data for decays into and accompanied by pion or kaon pairs, utilizing unitary and analytic final-state interactions to reveal universal coupling patterns, a distinct non-charmonium nature for the , and the significant role of the resonance while predicting related branching fraction ratios and invariant mass distributions.
Motivated by recent work, this paper derives simple analytical spectral functions for two-pion exchange nucleon-nucleon potentials involving single and double Roper resonance excitation, as well as combined and Roper excitation, and uses subtracted dispersion relations to obtain momentum-space potentials that incorporate regulator functions to control high-momentum components.
This paper presents a four-dimensional Langevin framework calculation of isotope-resolved Ba and Xe fission yields across various actinides, demonstrating successful reproduction of dominant neutron-number maxima while identifying a systematic tendency for the model to predict narrower distribution tails than observed in evaluated reference data.
This paper reveals fundamental trade-offs in Gauss's law-based quantum error correction for 1+1D lattice QED, demonstrating that while it can reduce qubit overhead and offer lower single-round error rates, it imposes strict constraints on electric field configurations and ultimately leads to faster decoherence to mixed states compared to universal codes under repeated error correction cycles.
This study demonstrates that hadronic regeneration of mesons from -meson collisions during the hadronic break-up phase in Pb+Pb collisions significantly contributes to the final observed yields, implying that regeneration must be accounted for in models and making it difficult to distinguish between regeneration occurring at hadronization versus during final-state interactions.
This study investigates the impact of -clustering on nucleonic correlations in relativistic light ion collisions by extracting and comparing structural parameters from various *ab initio* models and density functions, revealing distinct geometric configurations and validating perturbative calculations against Monte Carlo simulations for both symmetric and asymmetric collision systems.
This paper establishes that the two-dimensional Fourier transform of generalized parton distributions encodes distinct impact-parameter densities and parton-nucleon correlations depending on skewness, leading to universal rapidity-modified angular momentum identities and providing leading-twist GPD predictions validated by lattice data and applicable to future experiments at Jefferson Lab and the Electron Ion Collider.
This paper presents an analytic string-based framework for nucleon axial and helicity-flip generalized parton distributions that satisfies fundamental theoretical constraints, reproduces existing lattice QCD moments, and provides testable predictions for sea quark and gluon polarized moments at future facilities like Jefferson Lab and the EIC.
This study employs a stochastic approach within the extended quantum molecular dynamics model to demonstrate that the peak position and width of the giant dipole resonance in Pb are highly sensitive to the symmetry energy and in-medium nucleon-nucleon cross sections, thereby offering a pathway to constrain the nuclear equation of state and confirming that a significant reduction of free cross sections in the medium is necessary to accurately reproduce experimental data.
This paper demonstrates that a modified Double Logarithmic Approximation incorporating energy conservation accurately describes the inclusive charged-particle multiplicity distributions of quark- and gluon-initiated jets in 13 TeV $pp$ collisions, showing consistency with both ATLAS experimental data and PYTHIA simulations.