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.
The NA61/SHINE Collaboration presents results from a comprehensive two-dimensional scan of collision energy and system size to investigate the onset of deconfinement and baryon transport mechanisms in strongly interacting matter, highlighting key findings such as the ratio and comparisons with previous NA49 data.
This paper introduces and validates a novel no-reaction-plane method for extracting directed and elliptic flows in heavy-ion collisions using simple count asymmetries, demonstrating through PHSD model simulations that it accurately captures flow fluctuations without the need for event-plane reconstruction.
This paper extends perturbative Gubser flow solutions to derive analytic nonlinear response relations for flow harmonics and , revealing that a mismatch between participant and reaction planes introduces a critical angular factor that can significantly alter the magnitude and even the sign of effective nonlinear response coefficients.
This paper introduces "SemiCharmTag," a novel tool for LHCb that utilizes secondary vertex hadron track tagging to effectively reject or isolate charm semileptonic backgrounds in dimuon Drell-Yan measurements at 13.6 TeV, significantly improving signal-to-background ratios while enabling the creation of unbiased charm-enriched samples.
This paper employs a microscopic cluster model with folding potentials and the Multiple Internal Reflections method to demonstrate that the synthesis of Mg via C + C pycnonuclear reactions in neutron stars is most probable through the formation of a new excited compound nucleus in quasibound states, offering a more precise description than traditional Woods-Saxon potentials.
This paper demonstrates that two-proton emitters with initial diproton correlations, such as Ne, can serve as sources of spin-entangled proton pairs exhibiting correlations that exceed local-hidden-variable bounds, provided the emission occurs via a democratic three-body process rather than sequential decay.
Using the complete Borexino dataset from 2007 to 2021, researchers established the most stringent experimental limits to date on the lifetime of nuclei against Pauli exclusion principle-forbidden transitions, setting lower bounds ranging from to years for various decay channels and deriving extremely tight upper limits on the relative strengths of such non-Paulian processes.
This paper outlines a modern, transparent, and methodologically robust effort to improve the precision and reliability of nuclear charge radii determinations by integrating complementary experimental techniques with advanced theoretical frameworks.
This paper utilizes a phenomenological spectrum shift model to demonstrate a striking correlation between average partonic transverse momentum loss and the initial energy density of the Quark-Gluon Plasma across a wide range of collision energies, while also successfully predicting high- hadron elliptic flow by coupling the model to geometric event shape estimates.
Using 39.1 kg·yr of exposure from the PandaX-4T experiment, this study presents the most precise measurement to date of the Xe two-neutrino double beta decay half-life, provides a consistent measurement of the nuclear matrix element ratio , and establishes the world's most stringent limit on Majoron-emitting modes with spectral index .