548 papers
Nucl-Ex represents the dynamic frontier where scientists probe the fundamental building blocks of matter through high-energy experiments. By smashing particles together at incredible speeds or observing rare cosmic events, researchers uncover the forces that govern our universe and test the limits of our current understanding of physics.
At Gist.Science, we ensure these breakthroughs reach a broader audience by processing every new preprint in this field directly from arXiv. For each study, we provide both a clear, plain-language explanation of the core discoveries and a detailed technical summary for those seeking deeper insights. Below are the latest papers in nuclear experiment research, curated to help you stay informed on the latest developments from the lab.
This study characterizes the light yield and transmission properties of Saint-Gobain's BCF-91A and Eljen Technology's new EJ-160 wavelength-shifting fibers under ionizing radiation, revealing that the EJ-160 variants offer significantly higher light yields (5–7 times greater) despite varying attenuation lengths.
This paper introduces VarP-GP, a cost-efficient Bayesian emulator that leverages variable statistical precision in Monte Carlo simulations to significantly reduce uncertainty in quark-gluon plasma modeling, thereby enabling previously infeasible multi-model calibrations of high-energy nuclear collision data.
This paper reports the first precision mass measurements of \textsuperscript{130}Te, \textsuperscript{130}Sn, and \textsuperscript{130}Sn\textsuperscript{m} using the Phase-Imaging Ion Cyclotron Resonance technique, demonstrating improved precision for \textsuperscript{130}Sn and utilizing these new values in SkyNet simulations to refine models of r-process nucleosynthesis and distinguish between cold and hot astrophysical scenarios.
Using CMS Open Data from PbPb collisions at , this study presents preliminary measurements of the radial flow observable , confirming key collective phenomena such as long-range correlations and factorization that are consistent with ATLAS results at higher energies.
This paper presents the first systematic lattice QCD study of proton- scattering across multiple pion masses and lattice spacings, yielding scattering parameters and cross sections that agree with experimental data and confirm attractive interactions critical for nuclear theory and neutron star modeling.
By performing the first direct measurement of the ON reaction at astrophysical energies, researchers determined a thermonuclear rate approximately 1.5 times higher than standard values, thereby ruling out a previously suggested seven-fold enhancement and concluding that this reaction alone cannot explain observed calcium-to-sulphur and argon-to-sulphur ratio variations in Type Ia supernovae.
This paper presents a simultaneous analysis of measured and calculated data to predict the prompt fission neutron spectra (PFNS) of 233U(n,F) up to 20 MeV, establishing that while its spectrum is harder than 235U(n,F) but softer than 239Pu(n,F), the underlying pre-fission contributions and energy partitioning differ significantly due to fissility and competing reaction channels.
This paper proposes and validates a Pearson correlation between spectator and charged-particle forward-backward asymmetries as a robust, data-driven observable to constrain models of preferential emission and spectator breakup dynamics in heavy-ion collisions.
This paper introduces a physics-embedded Bayesian neural network (PE-BNN) framework that integrates an energy-independent phenomenological shell factor and WAIC-based hyperparameter optimization to accurately predict energy-dependent fission product yields with fine structures and close agreement with known nuclear shell effects.
This study utilizes the AMPT model to demonstrate that the elliptic flow of charged hadrons in 200 GeV d+Au collisions is primarily driven by early-stage partonic interactions rather than hadronic rescattering, successfully reproducing experimental trends and highlighting the significance of parton scattering mechanisms in asymmetric collision systems.