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 utilizes the instanton liquid model enhanced by correlated instanton-anti-instanton pairs to derive and analyze the transverse distribution of the color Lorentz force acting on quarks in pions and nucleons, demonstrating that these force form factors are intimately related to gravitational and transversity form factors and yield results for nucleons consistent with recent lattice QCD calculations.
This review paper examines hadron structure within the covariant Nambu-Jona-Lasinio model as a chiral effective theory of QCD, demonstrating its ability to replicate spontaneous chiral symmetry breaking and confinement while validating consistency with parton distribution functions and electromagnetic form factors against experimental data and future collider prospects.
This paper proposes that the anomalous suppression of ratios in neutron-deficient nuclei, which standard models fail to explain, arises from a low-lying mixed-symmetry collective excitation mode that bridges single-particle and collective dynamics.
This paper presents a unified framework within the NuWro Monte Carlo generator that consistently treats final-state interactions in quasielastic lepton-nucleus scattering by combining convolution-based inclusive calculations with an event-level cascade classification, significantly improving agreement with both inclusive electron-scattering data and exclusive MicroBooNE measurements.
This paper presents the first uncertainty-quantified neutron-capture cross section for Al, demonstrating that the USDBUQ500 shell model interaction yields nuclear level densities and radiative strength functions with constant uncertainties of 6% and 9%, respectively, which propagate to a 5–25% non-Gaussian uncertainty in the cross section.
This paper calculates the baryon number–electric charge susceptibility at finite baryon density using an S-matrix formalism for pion-nucleon interactions within a hadron gas model, revealing a significant increase with chemical potential and evaluating its behavior along the chemical freeze-out line and in a cooling fireball under Partial Chemical Equilibrium.
This paper proposes that supermassive dark objects, such as Sgr A*, could be composed of light fermionic dark matter forming a massive halo around a neutron star core, where the total mass scales inversely with the dark matter particle mass.
This paper utilizes approximately 4000 lattice QCD propagators on a heavy pion ensemble to analyze relativistic nucleon wavefunctions, revealing that the observed node structure in the spectrum arises from two distinct mechanisms: "superposition nodes" created by combining interpolating fields and novel "built-in nodes" inherent to the s-wave Dirac components of individual fields.
This paper introduces and validates a novel no-reaction-plane method for extracting directed and elliptic flows in heavy-ion collisions using simple count asymmetries, demonstrating through PHSD model simulations that it accurately captures flow fluctuations without the need for event-plane reconstruction.
This study proposes that the rapid subsidence of surface bulges on post-scission fission fragments acts like a catapult, reflecting nucleons inward to generate high-energy neutrons at a few percent yield.