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 presents the first direct measurement of radial flow in Pb-Pb collisions at 5.02 TeV using the novel observable , revealing mass ordering at low transverse momentum and quark recombination effects at high momentum that confirm the sensitivity of this probe to collective expansion and hadronization dynamics in the quark-gluon plasma.
This paper presents projected sensitivity estimates showing that the KATRIN experiment, utilizing its upcoming TRISTAN detector upgrade, will be capable of probing keV-scale sterile neutrino mixing amplitudes down to for masses between 4 and 13 keV, significantly extending the reach of previous laboratory searches despite potential systematic uncertainties.
This paper demonstrates that longitudinally polarized protons can induce chirality in the final states of intermediate-energy reactions involving non-coplanar momenta, a phenomenon quantified by the analyzing power and explained through the coupling of incident proton helicity to the orbital chirality of single-particle wave functions.
The GlueX experiment at Jefferson Lab reports the first observations of and photoproduction alongside production, revealing forward-peaked angular distributions consistent with Regge-like -channel exchanges and a phenomenological double-exchange model, while finding no narrow resonant structures and observing a suppression of pairs similar to other reactions.
This paper develops a Bayesian inference framework to disentangle genuine collective flow from transverse momentum conservation (TMC) backgrounds in small collision systems, revealing that while +Pb data aligns with standard flow measurements, + collisions require this new method to accurately extract flow magnitudes that are otherwise underestimated due to competing TMC effects.
Motivated by color coherence and decoherence effects, this paper proposes a theoretical framework combining vacuum-like evolution and medium-induced radiation to successfully describe the inclusive jet modification factor and its substructure dependence in 0–10% PbPb collisions at as measured by ATLAS.
The TUCAN collaboration reports significant progress in commissioning its high-intensity accelerator-driven ultracold neutron source and developing the associated spectrometer, achieving the first UCN production in 2024 and setting the stage for a neutron EDM experiment with a sensitivity goal of and two orders of magnitude improved statistics.
This paper demonstrates that an emulator based on eigenvector continuation can significantly accelerate coupled-channels calculations for sub-barrier fusion reactions while accurately extracting nuclear deformation parameters, thereby providing a powerful tool for systematically exploring intrinsic nuclear shapes.
This paper presents the first measurements of and hyperon production in high-multiplicity proton-proton collisions at TeV, revealing a strong correlation between multi-strange hadron yields and final-state multiplicity that extends to the highest multiplicities in pp collisions and is better described by state-of-the-art models incorporating string interactions and collective expansion.
The ALICE Collaboration reports the first measurements of the average transverse-momentum fraction for strange hadrons in 13 TeV pp collisions, revealing distinct production trends for mesons and baryons that current Monte Carlo models fail to describe.