449 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 proposes that the rapid four-day cooling of the neutron star MAXI J1752$-$457 following a superburst provides the first evidence of a nuclear Urca process, where enhanced neutrino emission from electron capture and decay cycles in the star's ocean dominates the thermal evolution.
This paper analyzes systematic errors arising from higher-twist contamination and kinematic effects in extracting the leading-twist structure function from inclusive DIS on a tensor-polarized deuteron, comparing two target polarization directions to determine that while both options yield comparable errors at Jefferson Lab 12 GeV kinematics, the momentum transfer direction is preferred at higher values.
This study evaluates the feasibility of spallation-driven transmutation for six long-lived fission products using proton accelerators with lead or depleted uranium targets, finding that while technetium, iodine, and selenium are promising candidates for effective transmutation, zirconium and cesium remain inefficient and costly to treat.
Researchers at the China Spallation Neutron Source successfully developed and validated an eV-range polarized neutron system using an in-situ He Spin-Exchange Optical Pumping filter and solenoidal guide field, achieving a measured parity violation asymmetry of % at the 0.747 eV resonance of La to support future Time-Reversal Invariance Violation studies.
This paper presents the first measurement of jet axis decorrelation in photon-tagged jets from PbPb and pp collisions at 5.02 TeV, revealing a narrowing effect for high-transverse-momentum jets in central PbPb collisions that is compared against theoretical models of parton energy loss in the quark-gluon plasma.
This paper demonstrates that a significantly enhanced isovector nuclear spin-orbit interaction, inferred from CREX experimental data on Ca, resolves the PREX-CREX puzzle and explains the emergence of new magic numbers in neutron-rich nuclei while preserving the successful description of standard nuclear properties.
This paper presents a novel Bayesian analysis framework utilizing Monte Carlo uncertainty propagation to project the background index of the MAJORANA DEMONSTRATOR experiment, resulting in a calculated mean background index of cts/(keV kg yr) from thorium and uranium contaminants.
This paper demonstrates that Bayesian and Monte Carlo methods provide comparable and robust estimates for the uncertainty in contaminant levels during the measurement of bound-state decay of , recommending their adoption for future experiments facing similar statistical fluctuations.
This ALICE study introduces the new observable to measure long-range transverse momentum correlations in Pb-Pb collisions at 5.02 TeV, revealing mass-dependent flow patterns consistent with hydrodynamics and quark recombination while demonstrating its sensitivity to bulk viscosity and the equation of state for constraining the properties of strongly interacting matter.
Using a lattice Boltzmann-Uehling-Uhlenbeck transport model with a density-, momentum-, and isospin-dependent NLO Skyrme pseudopotential, this study analyzes proton anisotropic flows in Au+Au collisions at to demonstrate their strong sensitivity to momentum-dependent mean-field potentials and the symmetric nuclear matter incompressibility, while highlighting the need to incorporate higher-order equation-of-state parameters and in-medium cross-section modifications for future Bayesian extractions of nuclear matter properties.