1145 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 uses infinite matrix product state techniques to demonstrate that coupling a quantized axion field to the massive Schwinger model in a Hamiltonian lattice gauge theory dynamically relaxes the effective -angle to a CP-conserving minimum, thereby providing a nonperturbative, quantum-hardware-ready solution to the strong CP problem.
This paper presents the first lattice QCD study of -meson nucleon scattering at the physical point using the HAL QCD method, revealing that while the interaction features a short-range repulsive core and a shallow attractive pocket with the channel being more attractive than , no bound states (pentaquarks) are found in either isospin channel.
This paper proposes a novel multimessenger framework that extracts the effective radial flow of the quark-gluon plasma by jointly analyzing thermal photon and dilepton spectra, establishing a measurable quantity that correlates with spacetime-averaged radial velocity and provides a concrete roadmap for probing early-time QGP dynamics at RHIC and the LHC.
This paper presents a Bayesian-optimized XGBoost model that accurately predicts the -decay energy and half-life of superheavy nuclei by integrating key nuclear structural features, outperforming traditional empirical models while providing physical insights through SHAP analysis.
This study demonstrates that restoring rotational symmetry through angular-momentum projection in the axially deformed proton-neutron QRPA framework significantly reduces calculated nuclear beta decay half-lives by up to 60% compared to unprojected approximations.
This Letter presents an improved, model-independent calculation of radiative corrections to decays that incorporates structure-dependent effects beyond point-like pions and threshold enhancements, thereby refining the precision of the hadronic-vacuum-polarization contribution to the muon's anomalous magnetic moment derived from tau decay data.
This paper develops a hybrid approach combining the Tabular Prior-data Fitted Network (TabPFN) with the Coulomb and Proximity Potential Model to accurately predict -particle preformation factors, thereby significantly improving -decay half-life calculations and suggesting as a neutron magic number for superheavy nuclei.
This paper numerically investigates the time evolution of single-particle excitations in a Fermi system using a nonlinear diffusion equation, proposing a method to distinguish between the relaxation of the excitation and the nuclear core while revealing discrepancies between the resulting relaxation times and previously estimated kinetic coefficients.
This paper utilizes realistic internucleon forces, particularly tensor forces, to describe nuclei with by modeling them as clusters of subsystems with specific orbital momenta, thereby explaining phenomena like the Be lifetime and the Hoyle state while rejecting the concept of a "power center" in favor of a cluster-based approach.
This paper extends the microscopic calculation of shear viscosity in graphene electron fluids to finite magnetic fields using kinetic theory, revealing that the magnetic field induces anisotropy resulting in five independent viscosity coefficients, with significant suppression of perpendicular and parallel components and maximized Hall effects occurring at specific field strengths that vary across non-relativistic, relativistic graphene, and ultra-relativistic quark fluid systems.