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.

Production of Ξ\Xi and Ω\Omega hyperons in high-multiplicity proton-proton collisions at s\sqrt{s} = 13 TeV

This paper presents the first measurements of Ξ\Xi and Ω\Omega hyperon production in high-multiplicity proton-proton collisions at s=13\sqrt{s} = 13 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.

ALICE Collaboration2026-03-23⚛️ nucl-ex

Measurement of the elliptic flow of 3^3He and Λ3^3_\LambdaH in Pb-Pb collisions at sNN=5.36\sqrt{s_{\rm NN}} = 5.36 TeV

Using a large dataset of approximately five billion Pb-Pb collisions at sNN=5.36\sqrt{s_{\rm NN}} = 5.36 TeV collected by the ALICE detector during LHC Run 3, this paper presents the first measurement of the elliptic flow for (anti)hypertriton (Λ3^3_\LambdaH) and a study of that for helium-3 (3^3He), providing critical constraints on hadronization models and insights into the production mechanisms of light (hyper)nuclei.

ALICE Collaboration2026-03-23⚛️ nucl-ex

Global Λ\Lambda hyperon polarization in low-energy heavy ion collisions -- a scenario without vorticity

This paper proposes that the global Λ\Lambda hyperon polarization observed in low-energy heavy-ion collisions can be partially explained (accounting for ~23% of the signal) by a mechanism linking it to long-standing transverse polarization phenomena via the alignment of production and reaction planes driven by directed flow, rather than solely by quark-gluon plasma vorticity.

Feng Liu (Department of Physics and Astronomy, Stony Brook University), Zhoudunming Tu (Department of Physics and Astronomy, Stony Brook University, Department of Physics, Brookhaven National Laborato (…)2026-03-23⚛️ nucl-th

Interrogating the composition and distribution of nuclear magnetization via the hyperfine anomaly: experiment meets nuclear and atomic theory for short-lived 47^{47}K

By combining high-precision liquid-state β\beta-NMR measurements of short-lived 47^{47}K with advanced atomic and nuclear theories, this study successfully determines the spatial distribution of nuclear magnetization and reveals a persistent overestimation of spin contributions in current nuclear models, thereby establishing a robust method for benchmarking nuclear structure theory and searching for physics beyond the Standard Model.

M. L. Bissell, M. Jankowski, A. Antušek, N. Azaryan, B. C. Backes, M. Baranowski, M. Chojnacki, K. M. Dziubinska-Kühn, 1 R. Han, A. Hurajt, B. Karg, I. Michelon, M. Pesek, M. Piersa-Siłkows (…)2026-03-23⚛️ nucl-ex

Systematic sensitivity study of the J/ψJ/ψ nuclear modification factor to polarization assumptions

This paper demonstrates that assuming unpolarized J/ψJ/\psi mesons introduces a dominant, unquantified systematic uncertainty in nuclear modification factor (RAAR_{\rm AA}) measurements, highlighting the critical need for precise polarization data to accurately interpret heavy quarkonium interactions with the Quark-Gluon Plasma.

Yi Yang, Chun-Wei Su, Te-Chuan Huang2026-03-20⚛️ hep-ex

Transfer Learning for Neutrino Scattering: Domain Adaptation with GANs

This paper demonstrates that transfer learning with Generative Adversarial Networks effectively extrapolates physics information from synthetic neutrino-carbon scattering data to related processes like neutrino-argon and antineutrino-carbon interactions, significantly outperforming models trained from scratch and maintaining high accuracy even with limited statistics.

Jose L. Bonilla, Krzysztof M. Graczyk, Artur M. Ankowski, Rwik Dharmapal Banerjee, Beata E. Kowal, Hemant Prasad, Jan T. Sobczyk2026-03-20⚛️ nucl-ex

Quantifying fluctuation signatures of the QCD critical point using maximum entropy freeze-out

This paper utilizes a maximum entropy freeze-out approach to quantify how non-universal mapping parameters and the distance between the critical point and the freeze-out curve influence factorial cumulants of proton multiplicities, thereby linking QCD thermodynamics near a critical point to observable event-by-event fluctuations in heavy-ion collisions.

Jamie M. Karthein, Maneesha Sushama Pradeep, Krishna Rajagopal, Mikhail Stephanov, Yi Yin2026-03-20⚛️ nucl-ex

Impact of QCD Energy Evolution on Observables in Heavy-Ion Collisions

This study demonstrates that incorporating QCD small-xx energy evolution (JIMWLK) into the IP-Glasma initial state framework significantly alters key heavy-ion collision observables, such as particle multiplicities and flow correlations, highlighting the critical necessity of nonlinear QCD evolution for accurately modeling early-stage dynamics and extracting quark-gluon plasma transport properties.

Heikki Mäntysaari, Björn Schenke, Chun Shen, Wenbin Zhao2026-03-20⚛️ nucl-ex