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 study demonstrates that updating specific (, n) reaction rates, particularly for O and Ne, significantly enhances the weak s-process yields in metal-poor massive stars by tens of times, with the O(, n) reaction playing a dominant role across all evolutionary stages, especially in more massive models.
This paper introduces a Universal Four-Fermion Formation Framework (U4F) combined with large-scale configuration-interaction calculations to explain the origin of a newly identified global odd-even staggering in decay as a result of suppressed clustering correlations caused by unpaired nucleons.
This paper employs chiral effective field theory and resonance chiral theory to study electron-positron annihilation into four pions in the low-energy region, revealing a significant discrepancy between theoretical predictions and experimental data that necessitates new measurements, while also calculating the resulting contributions to the muon's anomalous magnetic moment.
This study analyzes the causal constraints of the Mueller-Israel-Stewart theory for heat flow in heavy-ion collisions, revealing that realistic conditions lead to causality-violating heat fluxes that suggest either an overestimation of transport coefficients or a breakdown of the fluid approximation.
This paper demonstrates that an emulator based on eigenvector continuation can significantly accelerate coupled-channels calculations for sub-barrier fusion reactions while accurately extracting nuclear deformation parameters, thereby providing a powerful tool for systematically exploring intrinsic nuclear shapes.
This paper proposes that the global hyperon polarization observed in low-energy heavy-ion collisions can be partially explained (accounting for ~23% of the signal) by a mechanism linking it to long-standing transverse polarization phenomena via the alignment of production and reaction planes driven by directed flow, rather than solely by quark-gluon plasma vorticity.
This paper investigates Majorana Double Charge Exchange reactions as a tool to study short-range nucleon correlations relevant to neutrinoless double beta decay, highlighting the pion potential's effective range of approximately 1 fm as a key indicator of the process's short-range nature.
This paper introduces the quarkyonic QMC (QQMC) model, which combines a dual quarkyonic picture with the quark-meson coupling framework to demonstrate that nuclear interactions significantly enhance the stiffening of the equation of state and trigger an earlier onset of quark saturation in dense matter compared to noninteracting models.
This paper demonstrates that scalar field theory with negative quartic coupling, despite having an unstable classical potential, yields a stable and unitary quantum theory with a well-defined phase diagram and finite temperature properties, offering a promising UV-complete, interacting alternative to the standard Higgs model in four dimensions by circumventing proofs of quantum triviality.
This paper demonstrates that in nuclear matter, renormalization group evolution causes effective field theory couplings to freeze at long distances, rendering leading-order contact interactions perturbative and requiring the inclusion of non-iterated density-dependent terms, thereby recovering a subset of Skyrme forces as the infrared limit.