516 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 paper introduces a Bayesian inference framework using AutoBNN to robustly extract barrier distributions with well-calibrated uncertainties from sparse fusion excitation function data, outperforming Gaussian process regression in benchmarks and successfully mitigating spurious structures in experimental heavy-ion fusion reactions.
This paper computes the relativistic correction to the high-energy resummed coefficient function for exclusive heavy quarkonium photoproduction, finding that while the correction itself is negligible at the physical mass scale, it significantly improves prediction robustness by partially canceling the factorization scale dependence of the leading-order relativistic correction.
This paper introduces radiative corrections within an effective field theory framework for neutral-current (anti)neutrino-nucleon elastic scattering at GeV energies, demonstrating that these corrections are comparable in magnitude to strange quark contributions and yield excellent agreement with BNL E734 and MiniBooNE experimental data.
This study utilizes the EPOS4 model to demonstrate that hadronic interactions, specifically the competition between rescattering and regeneration, significantly modify resonance production yields and distributions in both small (pp, p-O) and large (O-O, Pb-Pb) collision systems at LHC energies, highlighting the critical role of the hadronic phase even in small systems.
This paper presents rigorous exact calculations of infinite nucleonic matter using the full configuration-interaction quantum Monte Carlo method, revealing that symmetric nuclear matter is strikingly strongly correlated and challenging the validity of previous many-body expansion truncations.
Using a metallic magnetic calorimeter to measure the transition energy in muonic Be with unprecedented precision, this study determines a nuclear charge radius of 2.5506(51) fm that is significantly more accurate than previous values and marks the first such determination via muonic x-ray spectroscopy with microcalorimeters.
This paper presents the first measurements of (1S), (2S), and (3S) production in oxygen-oxygen and neon-neon collisions at = 5.36 TeV, revealing a significant sequential suppression pattern where excited states are more strongly suppressed than the ground state, providing evidence for quark-gluon plasma formation in light ion collisions.
Using ab initio computations with chiral effective field theory interactions, this study resolves the controversy regarding Sn by demonstrating that its low first excited energy contradicts the assumption of a closed neutron subshell, thereby indicating the absence of a shell closure in this nucleus.
Using high-precision Penning trap mass measurements at FRIB, researchers determined the masses of Ni and Co with significantly improved accuracy, revealing a substantial breakdown of the Isobaric Multiplet Mass Equation in the $fp$ shell that favors theoretical models omitting the Coulomb-exchange term.
Using precision mass measurements of neutron-rich platinum and gold isotopes at GSI, researchers discovered an unexpectedly enhanced shell strength below doubly-magic Pb, providing crucial experimental benchmarks for understanding heavy-element synthesis and refining theoretical models of the r-process.