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 paper demonstrates that a transformer model can efficiently predict the energy evolution of the dipole amplitude governed by the Balitsky-Kovchegov equation, enabling rapid fitting of its initial condition to HERA deep inelastic scattering data and revealing that a smaller starting evolution point yields better agreement with experimental results.
This paper proposes that a minimal dark scalar with a mass of approximately 9.40 GeV, which shares high- fragmentation scaling with NRQCD color-octet production, can simultaneously explain the anomalous high- plateau in nuclear modification factors, the vanishing elliptic flow, and the quarkonium polarization puzzle in heavy-ion collisions while evading historical low- constraints.
By demonstrating that a new measurement of the matter radius of 132Sn favors a soft nuclear symmetry energy when combined with PREX and CREX data, this study highlights the ongoing theoretical challenges in reconciling these results and underscores the critical need for independent confirmation via the upcoming MREX campaign.
This paper demonstrates the effectiveness of inverse kinematics fusion-fission reactions, utilizing a 238U beam on 9Be and 12C targets at GANIL with the LISE3 spectrometer, to systematically measure and identify unique isotopic yields of fission fragments, thereby providing critical experimental benchmarks for fission models.
This paper proposes a novel multimessenger framework that extracts the effective radial flow of the quark-gluon plasma by jointly analyzing thermal photon and dilepton spectra, establishing a measurable quantity that correlates with spacetime-averaged radial velocity and provides a concrete roadmap for probing early-time QGP dynamics at RHIC and the LHC.
This paper presents the first full Dalitz plot measurement of neutron beta-decay phase space using the Nab spectrometer to test the Standard Model and establish new constraints on a hypothesized excited neutron state that could resolve the neutron lifetime discrepancy.
This study demonstrates that restoring rotational symmetry through angular-momentum projection in the axially deformed proton-neutron QRPA framework significantly reduces calculated nuclear beta decay half-lives by up to 60% compared to unprojected approximations.
Using an effective Lagrangian approach calibrated to existing data, this study successfully reproduces the production cross sections of high-spin and mesons in reactions and predicts measurable, forward-peaked production rates for their partners, suggesting their feasibility for observation in future meson-beam experiments.
This paper reports the successful off-line commissioning of the radio frequency quadrupole ion guide for the St. Benedict experiment, demonstrating transport efficiencies exceeding 95% from the upstream RF carpet chamber and 60% from the dedicated off-line source to facilitate future tests of the Standard Model's electroweak sector.
This paper critically examines a recent analysis claiming evidence for a QCD critical end point via finite-size scaling of net-proton cumulants, highlighting methodological issues regarding acceptance windows, multiplicity scaling, and thermodynamic fields that must be addressed for a consistent interpretation.