666 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 a lattice QCD calculation of nucleon unpolarized second Mellin moments using four physical-mass ensembles to determine the continuum-limit contributions of quarks and gluons to the proton's momentum, angular momentum, and orbital angular momentum.
This paper derives model-independent expansions to quantify and evaluate the leading corrections to the smoothness and on-shell approximations in femtoscopy and coalescence, finding that for typical LHC collision scenarios, these corrections are generally small (at or below the percent level) and often subdominant to other effects like the equal-time approximation.
This review article explores the origins of photons in ultra-peripheral collisions of heavy ions and protons, highlighting their diverse applications in studying nuclear structure at low Bjorken-, probing beyond-standard-model physics, and investigating new quantum mechanical regimes through interferometry.
This study demonstrates that nonlinear collective flow in ultra-central U+U collisions, particularly through the sixth-order harmonic's sensitivity to mode coupling, provides a direct and experimentally accessible signature to isolate the intrinsic hexadecapole deformation () and reveal deviations from the quadrupole--hexadecapole scaling in nuclear structure.
This paper proposes an extended quarkyonic matter framework incorporating strange quarks and the full baryon octet, demonstrating that the quarkyonic mechanism lowers the critical density for hyperon appearance while significantly stiffening the equation of state to resolve the hyperon puzzle and increase the maximum mass of hyperon stars.
By reparameterizing the Polyakov-loop extended Nambu--Jona-Lasinio model to align with lattice data and the BES-II energy range, this study demonstrates that a distinct dip in the second-order temperature cumulant along the freeze-out line near 7.7 GeV supports the hypothesis that the non-monotonic transverse momentum correlations observed by the STAR Collaboration are linked to the QCD critical endpoint.
This paper proposes a novel, track-only method for extracting nucleon transversity by utilizing the transverse charge distribution in fragmenting quarks, which suppresses unpolarized backgrounds and coherently enhances spin-dependent azimuthal asymmetries through the Collins effect.
This paper demonstrates that a uniform wounded parton Glauber model, assuming four partons per nucleon and incorporating negative binomial fluctuations, successfully describes charged particle multiplicity distributions across O+O, Ne+Ne, Xe+Xe, and Pb+Pb collisions at TeV using a single set of parameters for centralities up to approximately 1%.
This paper presents a study of prompt and production in pPb collisions at = 8.16 TeV using CMS data, finding that their production ratio is independent of event multiplicity and kinematic variables, and shows no strong relative modification compared to proton-proton collisions, unlike the behavior observed for (2S) states.
The ALICE Collaboration reports the first measurement of prompt baryon production in Pb-Pb collisions at TeV, revealing a nuclear modification factor reaching up to 3 and yield ratios that challenge current theoretical models of charm hadronization in the quark-gluon plasma.