1429 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 proposes that self-bound hybrid stars characterized by strong phase transitions and large density discontinuities can simultaneously resolve multiple observational tensions regarding the masses, radii, and tidal deformabilities of various compact objects, including anomalous low-mass pulsars, the massive GW190814 secondary, and standard NICER measurements.
This paper presents an updated version of the TGlauberMC Monte Carlo code (v3.3) with improved nuclear density profiles and nucleon substructure treatments to provide precise predictions for initial-state observables and centrality-dependent multiplicity in upcoming oxygen-oxygen, neon-neon, and proton-oxygen collisions at the LHC.
This paper utilizes the Schwinger--Keldysh formalism to demonstrate that standard rate equations for nonequilibrium cascade dynamics are controlled Markovian approximations of a more fundamental multi-component system, where retaining the finite lifetimes of intermediate reservoirs reveals non-Markovian memory effects that govern delayed, history-dependent formation processes.
To celebrate the 50th anniversary of the J/ψ discovery, this paper reviews the progress of QCD-inspired quark potential models derived from charmonium spectra and emphasizes the critical role of unquenching dynamics, multiquark components, and exotic states in advancing our understanding of hadron structure and spectroscopy.
This paper proposes that neutron dark decay, potentially suppressed at high densities, provides a unified mechanism to explain both the existence of subsolar-mass compact objects like HESS J1731-347 and the two-solar-mass neutron star limit without relying on external merger processes.
This paper presents a comprehensive theoretical analysis of the two-neutrino double electron capture in Xe by improving nuclear and atomic structure calculations, which yields refined nuclear matrix elements, predicts specific capture fractions for various decay channels (notably 74% for the KK channel and 24% for the cumulative KL-KO channels), and provides updated atomic relaxation energies for background modeling in liquid Xenon experiments.
This paper proposes a novel semi-empirical formula for calculating nuclear matrix elements in two-neutrino double-beta decay that, by integrating insights from many-body methods and experimental trends, achieves superior agreement with experimental data compared to previous models while offering validated predictions for systems of interest.
This paper investigates the impact of radiative and atomic exchange corrections on the two-neutrino double-beta decay of Mo, revealing that these effects induce a significant 10 keV leftward shift in the summed electron spectrum which could alter constraints on new physics parameters when combined with refined nuclear matrix element calculations.
This paper numerically investigates the time evolution of sound modes in a Bjorken-expanding Super-Yang-Mills plasma, revealing how longitudinal expansion-induced anisotropy splits the speed of sound into two distinct values and constructing an anisotropic hydrodynamic framework to interpret these findings for heavy-ion collision data.
This paper demonstrates that the Short-Baseline Near Detector (SBND) can probe previously unexplored light dark matter parameter spaces by detecting MeV-scale photon "blips" from nuclear de-excitation, utilizing state-of-the-art ab initio nuclear theory to predict signals from argon excited states up to 18 MeV.