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 presents STAR measurements of the charge correlator ratio in +, $RuRu$, and $ZrZr$ collisions at GeV to probe string-like fragmentation in vacuum and investigate potential modifications to hadronization within the Quark-Gluon Plasma.
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.
This study utilizes beam-spin asymmetry measurements from the KaonLT experiment at Jefferson Lab to demonstrate that the ratio remains flat with respect to and is better described by Regge models than by generalized parton distribution formalism, indicating that the hard/soft factorization regime has not yet been reached in exclusive pion electroproduction at the explored kinematics.
By leveraging the unique sensitivity of the low-energy nuclear isomeric transition in Th, researchers at JILA conducted a precision spectroscopy search that established the world's strongest bounds on ultralight dark matter in the to eV mass range, probing interaction scales exceeding a million times the Planck scale.
This paper presents the first measurements of dielectron production in proton-proton and proton-lead collisions at = 5.02 TeV using the ALICE detector, determining charm and beauty cross sections in pp collisions and finding that the pPb results are consistent with expectations without nuclear matter effects while providing the first direct comparison of these systems via the nuclear modification factor .
By modeling resonance decay effects on pion and kaon-proton correlations in 13 TeV pp collisions, this study demonstrates that a universal, collectively scaling primordial emission source exists for all hadron species in small collision systems at the LHC.
The ALICE Collaboration measured the inclusive production cross section of isolated prompt photons in pp and p-Pb collisions at various LHC energies, observing a low-transverse-momentum suppression in p-Pb collisions consistent with nuclear shadowing effects predicted by perturbative QCD.
The ALICE collaboration at the LHC has provided model-independent evidence that approximately 90% of deuterons and antideuterons in high-energy proton-proton collisions are formed via nuclear reactions following the decay of short-lived resonances, thereby resolving a key gap in understanding light (anti)nuclei production in ultra-relativistic environments.
Using LHCb data from Pb and Pb collisions at TeV, this study measures the to production ratio as a function of multiplicity, revealing a multiplicity-dependent suppression for prompt charmonia in the Pb-going direction that suggests the presence of additional mechanisms, potentially related to quark-gluon plasma formation, beyond standard comover effects.
The ALICE experiment measured the transverse momentum spectra and integrated yields of anti- hyperons in pp and p-Pb collisions at TeV using a novel antineutron reconstruction method, finding that while multiparton-interaction models best describe the high- spectra, all tested models reproduce the total yields and nuclear modification factors within uncertainties.