1104 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 extends a microscopic triaxial projected shell model (TPSM) investigation to six additional nuclides (Ge, Se, and Mo), demonstrating that the approach successfully describes experimental matrix elements and reveals -soft behavior in most cases while showing no clear correlation between -band energy staggering and shape invariants, contrary to phenomenological collective model predictions.
This study demonstrates that neutron star observables in hybrid equation-of-state models retain significant sensitivity to the choice of low-density nuclear matter models at commonly adopted transition densities (), implying that lowering the transition density is necessary to minimize systematic uncertainties and achieve model-independent predictions.
This paper extends perturbative Gubser flow solutions to derive analytic nonlinear response relations for flow harmonics and , revealing that a mismatch between participant and reaction planes introduces a critical angular factor that can significantly alter the magnitude and even the sign of effective nonlinear response coefficients.
This paper presents a systematic extension of the variable phase method to calculate spin-1/2 correlation functions under both central and noncentral interactions, specifically evaluating nucleon-nucleon correlations with the Reid soft-core potential across various Gaussian source sizes.
This paper presents a formal generalization of the Ichimura-Austern-Vincent (IAV) sum rule for inclusive breakup reactions that removes the spectator approximation for the detected fragment, thereby enabling state-resolved cross sections and revealing that non-spectator effects are significant and governed by the operator .
This paper challenges the conventional view that octupole deformation is driven solely by couplings by demonstrating, through Nilsson model analysis and particle-rotor calculations, that the often-overlooked coupling plays a synergistic and essential role in driving reflection asymmetry in octupole-deformed nuclei.
This paper presents an updated Bayesian inference of a Skyrme energy density functional, enhanced by a flexible high-density meta-model and an efficient Gaussian emulator, to derive consistent neutron star crust and core properties that satisfy both *ab initio* nuclear matter constraints and recent astrophysical observations.
This paper presents a systematic improvement to quasiparticle nuclear Hamiltonians for quantum computing by applying Brillouin-Wigner perturbation theory and a mean-field Hartree-Fock approximation to accurately describe open-shell nuclei in the $sd$ shell with minimal error, thereby enabling efficient quantum simulations on near-term devices.
This study demonstrates that while a larger effective nucleon mass has negligible thermodynamic impact, the inclusion of dineutron and tetraneutron states significantly alters the equation of state for core-collapse supernovae by reducing unbound neutron fractions and promoting the formation of heavier nuclei, thereby lowering the system's free energy.
This paper demonstrates that in truncated partial-wave analysis, the extracted coefficients are not direct projections of the full amplitude but rather effective mixtures of angular momenta arising from the nonlinear coupling of bilinear interference terms within the restricted fit space.