555 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 investigates relativistic effects in femtoscopic correlations and deuteron formation, demonstrating that transforming the source function to the center-of-mass frame to account for relativistic elongation resolves discrepancies between theoretical predictions and experimental data regarding the deuteron coalescence coefficient.
This paper reports the first measurement of meson production via the di-electron decay channel in 30 GeV proton-carbon and proton-copper interactions at J-PARC, yielding total cross sections of 2.0 mb and 10.3 mb respectively and establishing a mass-number dependence parameter of 0.99 that aligns with existing proton-proton data.
This study demonstrates that incorporating rigorous angular momentum conservation into the IBUU transport model significantly enhances pion production and reduces the charged pion yield ratio in intermediate-energy heavy-ion collisions, a crucial correction for accurately extracting the nuclear symmetry energy at high densities.
Motivated by the ATOMKI anomalies, this study employs the Gaussian Expansion Method to predict X17-induced Lamb shifts and hyperfine splittings in muonic atoms up to Z=15, identifying specific isotopes like muonic deuterium, helium ions, and silicon-29 as promising probes to distinguish between vector and pseudoscalar fifth-force mediators.
This paper reviews recent advancements and applications of relativistic chiral nuclear forces, highlighting the construction of a high-precision covariant force up to next-to-next-to-leading order and its successful implementation in describing nucleon-nucleon scattering, nuclear matter, finite nuclei, and hypernuclear systems.
This study demonstrates through simulation that orthogonal-strip HPGe detectors, analyzed via a hybrid Geant4-CNN framework, can effectively distinguish neutrinoless double beta decay events from single-electron backgrounds, providing quantitative design guidelines on how strip pitch and crystal thickness impact background rejection efficiency.
This paper investigates the relationship between effective degrees of freedom and the trace anomaly within the hadron resonance gas model, demonstrating that applying a convexity-based "c-theorem like" condition yields a limiting temperature consistent with lattice QCD predictions and the critical point, whereas a non-decreasing condition results in a significantly higher temperature.
This paper proposes a cryogenic source concept that generates high-flux, ultra-cold atomic tritium via electron dissociation of solid T2 films and buffer-gas cooling, enabling precision spectroscopy of the triton charge radius and significantly improving neutrino mass measurements by eliminating molecular final-state broadening.
This study provides a comprehensive comparison of coupled-cluster formulations based on symmetry-broken reference states and equation-of-motion techniques, demonstrating that both approaches yield consistent descriptions of bulk nuclear properties across calcium and nickel isotopic chains when using chiral effective field theory interactions.
This paper presents a novel high voltage delivery system design for the nEXO noble liquid time projection chamber, addressing stability challenges and radiopurity requirements to prevent electrical discharges while offering guidance for future experiments in similar environments.