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 a comprehensive systematic study of -forbidden transitions in odd- nuclei, utilizing a relativistic Dirac wave function framework to establish a robust linear correlation between transition amplitudes and empirical single-particle matrix elements, thereby quantifying the role of configuration mixing in these processes.
This paper demonstrates that a physics-informed Bayesian neural network (BNN3), which incorporates physical features like the odd-even effect, beta-decay energy, and isospin, significantly outperforms a baseline model in predicting U-235 and U-238 fission product yields with higher accuracy, better agreement with experimental data, and narrower confidence intervals.
This paper presents an expanding spherical fireball model that successfully describes the transverse momentum spectra and rapidity distributions of light hadrons produced in Au+Au collisions at RHIC energies between 7.7 and 39 GeV across various centralities.
This paper reviews the application of relativistic hydrodynamics to heavy-ion collisions, detailing how initial spatial eccentricities evolve into anisotropic flow coefficients via multi-particle correlations while analyzing the geometric dilution of vorticity and its impact on spin alignment observables.
This study employs cluster effective field theory to successfully model the elastic -O scattering matrices across seven spin-partial wave channels by fitting thirty-four parameters to ENDF/B-VIII.0 data, thereby providing insights into resonance uncertainties and the astrophysical factor for the C(,)O reaction.
This study demonstrates that ab initio nuclear mass calculations using the valence-space in-medium similarity renormalization group can refine r-process nucleosynthesis predictions around the N=82 shell closure, revealing a strengthened waiting point that slows the nucleosynthesis flow and significantly alters the abundance patterns of heavy elements compared to phenomenological models.
This study systematically determines the dynamic deformation parameters of Ce by combining experimental fusion data with Gaussian analytic-barrier and coupled-channels analyses across multiple projectile systems, revealing that the extracted quadrupole and octupole deformations are robust and effectively validated by their ability to reproduce fusion excitation functions and barrier distributions in the Si+Ce reaction.
This review presents a bottom-up theoretical framework for electric dipole moments (EDMs) that traces the connection from fundamental CP-violating interactions at the quark-gluon level to observable EDMs in nucleons, nuclei, atoms, and molecules, emphasizing the role of chiral perturbation theory and the complementarity of various systems in identifying the sources of CP violation beyond the Standard Model.
This paper demonstrates that hyperons in core-collapse supernovae reach local chemical equilibrium rapidly via nonleptonic reactions and significantly enhance muon (anti)neutrino opacities through semileptonic channels, thereby influencing proto-neutron star evolution and flavor-dependent neutrino transport.
This paper investigates three-nucleon short-range correlations using the generalized contact formalism, revealing significant isospin-symmetry breaking in light nuclei and establishing a universal scaling relation for three-body nuclear contacts across medium-mass and heavy nuclei.