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.
Using CMS data from lead-lead and proton-proton collisions at = 5.02 TeV, this study investigates the longitudinal invariance and shape evolution of jet-induced peaks in two-particle angular correlations, revealing that the peaks broaden significantly in pseudorapidity and exhibit increased longitudinal asymmetry as collision centrality and particle pseudorapidity increase.
This paper demonstrates a novel method for resolving event-by-event discrete charge changes in optically levitated silica microspheres caused by individual radioactive decays of implanted Pb and its daughters, by correlating millisecond-scale charge measurements with coincident scintillation detector signals to distinguish the charge ejection characteristics of and decays.
This paper demonstrates a proof-of-principle integrated methodology combining in-trap ion-molecule reactions within a radiofrequency quadrupole cooler-buncher with collinear laser spectroscopy to successfully produce and perform high-resolution spectroscopy on , thereby establishing a practical route for future studies of short-lived radioactive molecules like those containing .
This study utilizes multistage Monte Carlo simulations to demonstrate that recoil-induced medium responses cause nonmonotonic flavor-dependent modifications in soft-drop-groomed observables of -tagged jets, establishing these hard substructures as powerful tools for probing jet-medium interactions in heavy-ion collisions.
Using a novel event shape selection method to suppress elliptic flow backgrounds in Au+Au collisions across the RHIC Beam Energy Scan, this study reports a statistically significant residual charge separation at intermediate energies (11.5–19.6 GeV) that may indicate the chiral magnetic effect, while finding consistent-with-zero results at lower and higher energies.
This paper introduces a momentum rescaling framework that explains the unexplained rise-and-fall pattern of radial flow fluctuations in the quark-gluon plasma by factorizing them into a kinematic component driven by spectral shape transitions and a dynamical component that reveals significant medium-dependent deviations in LHC and RHIC collisions.
The paper introduces the N=126 Factory at Argonne National Laboratory, a new facility utilizing multi-nucleon transfer reactions and a sophisticated beam purification system to produce and study neutron-rich nuclei essential for understanding the astrophysical r-process.
This paper introduces a novel facility coupling an electron linear accelerator to a dilution refrigerator to generate on-demand, correlated ionizing radiation, enabling the precise characterization of radiation-induced relaxation, excitation, and detuning errors in superconducting qubits that mimic cosmic-ray effects and depend on device geometry.
This paper presents new measurements of , K, and p production in high-multiplicity proton-proton collisions at 13 TeV that reveal mass-dependent spectral hardening and enhanced baryon-to-meson ratios similar to heavy-ion collisions, suggesting that particle production scales with charged-particle multiplicity rather than system size or collision energy, while highlighting that current Monte Carlo models fail to consistently describe all observed features.
Using the full LHC Run 2 dataset, this ALICE study reports the first measurements of event-by-event correlations between elliptic flow and mean transverse momentum in pp, p-Pb, and Pb-Pb collisions, revealing non-monotonic trends and system-consistent values at low multiplicity that challenge current theoretical models and provide new constraints on the origin of collectivity in small collision systems.