nucl-ex papers | Gist.Science

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.

Evidence of isospin-symmetry violation in high-energy collisions of atomic nuclei: Theoretical and Phenomenological considerations

This paper extends the theoretical and phenomenological analysis of recent NA61/SHINE collaboration findings by establishing the conceptual and analytical foundations of isospin symmetry and proving that, under charge-symmetry invariant initial conditions, the mean multiplicities of charged and neutral kaons should be equal, thereby highlighting the significance of the observed violation.

Wojciech Brylinski, Marek Gazdzicki, Francesco Giacosa, Mark Gorenstein, Roman Poberezhnyuk, Subhasis Samanta2026-03-03⚛️ hep-ph

Disentangling nuclear structure through multiparticle azimuthal correlations in high-energy isobar collisions

This study demonstrates that multiparticle azimuthal correlations in central $^{96}$ Ru+ $^{96}$ Ru and $^{96}$ Zr+ $^{96}$ Zr collisions at 200 GeV are sensitive probes of nuclear deformation and neutron skin thickness, offering a robust method to disentangle nuclear structure effects with minimal dependence on shear viscosity.

Zaining Wang, Jinhui Chen, Jiangyong Jia, Yu-Gang Ma, Chunjian Zhang2026-03-03⚛️ nucl-ex

Ultra-cold neutron simulation framework for the free neutron lifetime experiment $τ$ SPECT

To address the neutron lifetime puzzle and characterize systematic uncertainties in the fully magnetic trap of the $\tau$ SPECT experiment, the authors developed a dedicated simulation framework based on the PENTrack software, enhanced with tools for flexible configuration and data visualization, which successfully aligns with experimental data from the Paul Scherrer Institute.

Julian Auler, Utkarsh Bajpai, Martin Engler, Viktoria Ermuth, Martin Fertl, Konrad Franz, Werner Heil, Simon Kaufmann, Bernhard Lauss, Niklas Pfeifer, Dieter Ries, Sylvain Vanneste, Noah Yazdandoost2026-03-03⚛️ nucl-ex

Identifying $α$ -cluster configurations in $^{20}$ Ne via ultracentral Ne+Ne Collisions

This paper proposes using normalized symmetric cumulants and Pearson coefficients derived from ultracentral Ne+Ne collisions at the LHC, combined with Brink model calculations and hydrodynamic simulations, to distinguish between competing $^{20}$ Ne cluster configurations (5 $\alpha$ versus $\alpha$ + $^{16}$ O) and probe nuclear structure transitions.

Pei Li, Bo Zhou, Guo-Liang Ma2026-03-03⚛️ nucl-ex

Abnormal dense and dilute nuclear systems

This paper reviews theoretical proposals and experimental searches for various abnormal nuclear systems, ranging from dense exotic states like pion and scalar condensates to dilute clustered matter, while also exploring potential stabilization mechanisms and unexplained observational anomalies.

E. E. Kolomeitsev, D. N. Voskresensky2026-03-03⚛️ nucl-ex

Principal Components of Nuclear Mass Model Residuals

This study applies Principal Component Analysis to the residuals of six nuclear mass models and finds that their discrepancies are largely uncorrelated and model-specific, suggesting that future improvements should be guided by individual model analyses rather than a universal approach.

Y. Y. Huang, X. H. Wu2026-03-03⚛️ nucl-ex

Next Generation Ta-STJ Sensor Arrays for BSM Physics Searches

To address systematic calibration discrepancies caused by resistive crosstalk and laser instability in Phase-III, the BeEST experiment's Phase-IV introduces redesigned STJ sensor arrays with individual ground wires and a more stable UV laser, successfully eliminating artifacts while maintaining high energy resolution for future BSM physics searches.

Joseph P. T. Templet, Spencer Fretwell, Andrew Marino, Robin Cantor, Ad Hall, Connor Bray, Caitlyn Stone-Whitehead, Inwook Kim, Francisco Ponce, Wouter Van De Pontseele, Kyle G. Leach, Stephan Friedri (…)2026-03-03⚛️ nucl-ex

Leptonic first-row correlation and unitarity waiting for further JUNO tests

The paper conjectures a remarkable correlation among the first-row elements of the lepton mixing matrix, $|U_{e1}|^2 = 2(|U_{e2}|^2 + |U_{e3}|^2)$ , which remains consistent with unitarity limits and is currently supported by JUNO and Daya Bay precision measurements at nearly the $1\sigma$ confidence level.

Zhi-zhong Xing2026-03-03⚛️ nucl-ex

Non-local orbital-free density functional theory incorporating nuclear shell effects

This paper resolves the longstanding challenge of incorporating nuclear shell effects into orbital-free density functional theory by developing a non-local kinetic energy density functional that successfully reproduces shell behaviors consistent with exact Kohn-Sham solutions.

Xinhui Wu, Gianluca Colò, Kouichi Hagino, Pengwei Zhao2026-03-03⚛️ nucl-ex

Automated event generation for S-wave quarkonium and leptonium production in NRQCD and NRQED

This paper presents an extension of the MadGraph5_aMC@NLO framework that enables automated leading-order calculations for S-wave quarkonium and leptonium production within NRQCD and NRQED formalisms, offering seamless integration with Beyond the Standard Model scenarios and highlighting the necessity of careful theoretical analysis beyond simple velocity-scaling rules.

Alice Colpani Serri, Chris A. Flett, Jean-Philippe Lansberg, Olivier Mattelaer, Hua-Sheng Shao, Lukas Simon2026-03-03⚛️ nucl-ex

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