1179 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 Letter presents a consistent matching of short-distance contributions and hadronic matrix elements for pion decay and decays beyond leading-logarithmic accuracy using recent lattice QCD results, thereby significantly reducing theoretical uncertainties to enable more precise future determinations of and the muon's anomalous magnetic moment.
This study presents the first exploratory lattice QCD calculation of nucleon unpolarized, helicity, and transversity parton distribution functions using boosted correlators in the Coulomb gauge, demonstrating that the method yields results compatible with global analyses for valence-quark distributions while highlighting the need to address excited-state contamination in full-quark-channel extractions.
This paper critically reexamines gauge-space rotations in atomic nuclei by demonstrating that standard moments of inertia for like-nucleon pairing are dominated by macroscopic effects which, when removed, reveal a negative inertia driven by Pauli blocking, while simultaneously identifying -type correlations as a genuine collective quartetting mode.
This paper reviews the theoretical framework and experimental evidence for the partial conservation of seniority in semi-magic nuclei, highlighting how specific states in high- orbitals (particularly ) remain solvable and unmixed despite the expected breakdown of seniority symmetry.
This study investigates charged-particle multiplicity distributions in high-energy p-O collisions across various energies and pseudorapidity intervals using Pythia and -factorization approaches, revealing that the choice of initial oxygen nucleus configuration (specifically -cluster versus Woods-Saxon models) and the theoretical formalism significantly influence the resulting multiplicity profiles, particularly at large multiplicities and higher pseudorapidities.
This paper constructs a hybrid equation of state to investigate QCD matter under finite magnetic fields and nonzero chemical potential, revealing that these parameters significantly alter thermodynamic observables and the speed of sound while the model successfully reproduces lattice QCD data at lower field strengths but underestimates magnitudes at stronger fields.
Using leading-order chiral perturbation theory, this paper maps the low-energy QCD phase diagram under magnetic fields with baryon and isospin chemical potentials, identifying various exotic phases including a chiral soliton lattice and a hybrid vortex phase that may be relevant to neutron stars at magnetic fields around G.
This study utilizes Bayesian inference on INDRA experimental data from central Xe+Sn collisions within a relativistic mean-field framework to demonstrate that light cluster abundances are well-described by temperature-dependent meson couplings, revealing that different in-medium modification models are indistinguishable by current data and that non-equilibrium effects are not required to explain the observed yields.
This paper reports a systematic measurement of elliptic flow for strange and multi-strange hadrons in isobar collisions at GeV, revealing approximate constituent quark scaling indicative of partonic collectivity and observing a 2% deviation in flow ratios between Ru+Ru and Zr+Zr collisions that highlights differences in their nuclear structure and deformation.
This paper presents a tree-level calculation of the scattering amplitude within covariant Chiral Perturbation Theory, demonstrating that the lepton mass significantly impacts the low-energy differential cross-section and establishing a framework to determine nucleon generalized polarizabilities and low-energy constants through comparison with future experimental data.