⚛️ Category

nucl-ex

555 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.

Limits on the chiral magnetic effect from the event shape engineering and participant-spectator correlation techniques in Pb-Pb collisions at sNN=5.02\sqrt{s_{\rm NN}} = 5.02 TeV

This paper presents the latest ALICE results from Pb-Pb collisions at sNN=5.02\sqrt{s_{\rm NN}} = 5.02 TeV, utilizing event shape engineering and participant-spectator correlation techniques to measure charge-dependent correlations and establish upper limits consistent with the absence of a Chiral Magnetic Effect signal.

ALICE Collaboration2026-02-27⚛️ nucl-ex

Understanding the impact of nuclear effects on proton decay searches with the GiBUU model

This study utilizes the GiBUU framework to demonstrate that while pion final-state interactions have a moderate impact on proton decay search sensitivity in water Cherenkov detectors, the choice of Fermi momentum distribution constitutes the dominant systematic uncertainty affecting atmospheric neutrino background estimates.

Qiyu Yan, Akira Takenaka, Kai Gallmeister, Xianguo Lu, Ulrich Mosel, Yangheng Zheng2026-02-27⚛️ nucl-ex

Universal and non-universal finite-volume effects in the vicinity of chiral phase transition in (2+1)-flavor QCD

This paper presents a finite-size scaling analysis of the chiral order parameter in (2+1)-flavor QCD using HISQ lattice data, demonstrating that infinite-volume extrapolated results align with expected O(2)O(2) scaling behavior while quantifying finite-size deviations to improve the precision of chiral phase transition temperature determinations.

Sabarnya Mitra, Jishnu Goswami, Frithjof Karsch2026-02-27⚛️ hep-lat

Opportunities for Imaging Light Nuclei with a Second Interaction Region at the Electron-Ion Collider

This paper presents an exploratory study demonstrating how a proposed second interaction region at the Electron-Ion Collider, featuring enhanced forward acceptance, would enable the detection of intact light nuclei to map their spatial parton distributions through coherent diffractive processes.

Wan Chang, Elke-Caroline Aschenauer, Alexander Jentsch, Arjun Kumar, Zhoudunming Tu, Zhongbao Yin2026-02-26⚛️ nucl-ex

Near-Threshold J/ψ→μ+μ−ψ\to μ^+μ^- Photoproduction and the Gluonic Gravitational Form Factors of the Proton

This paper reports the measurement of near-threshold J/ψ→μ+μ−J/\psi \to \mu^+\mu^- photoproduction cross sections from the J/ψ\psi-007 experiment at Jefferson Lab, which, when combined with electron decay data and analyzed via Holographic QCD, yields precise constraints on the proton's gluonic gravitational form factor Cg(t)\mathcal{C}_g(t) that agree with lattice QCD calculations and support a spatial picture of gluon dominance at larger radii with confining inward pressure.

007 Collaboration, S. Joosten, Z. -E. Meziani, S. Prasad, J. Swartz, B. Duran, M. K. Jones, H. Klest, M. Paolone, C. Peng, W. Armstrong, H. Atac, E. Chudakov, H. Bhatt, D. Bhetuwal, M. Boer, A. Camson (…)2026-02-26⚛️ nucl-ex

Development of Micromegas-based Active-Target Time Projection Chamber for Nuclear Astrophysics Studies

Researchers at the Saha Institute of Nuclear Physics designed, fabricated, and validated a Micromegas-based active-target Time Projection Chamber (SAT-TPC) for nuclear astrophysics, demonstrating its capability to accurately reconstruct particle trajectories and energy in various gas mixtures through experimental testing and hydrodynamic simulations.

Pralay Kumar Das, Nayana Majumdar, Supratik Mukhopadhyay2026-02-26⚛️ nucl-ex

Using Neural Networks to Accelerate TALYS-2.0 Nuclear Reaction Simulations

This paper demonstrates that an artificial neural network can serve as a high-fidelity surrogate model for TALYS-2.0, accelerating the generation of charged-particle residual product cross sections by over 1000 times while enabling efficient multi-parameter adjustments to improve agreement with experimental data.

Wilson Lin, Catherine E Apgar, Lee A Bernstein, YunHsuan Lee, Alan B McIntosh, Dmitri G Medvedev, Ellen M OBrien, Christiaan E Vermeulen, Andrew S Voyles, Jonathan T Morrell2026-02-26⚛️ nucl-ex

Surrogate neutron-capture studies with fission detection in inverse kinematics at the ESR storage ring

This paper reports on the successful implementation and performance of a new fission-fragment detection system within the NECTAR experiment at the ESR storage ring, which enabled the first simultaneous detection of γ\gamma-decay residues, multi-neutron-emission residues, and fission fragments during surrogate neutron-capture studies using a stored 238^{238}U beam and a deuterium target.

Bogusław Włoch, Camille Berthelot, Guy Leckenby, Beatriz Jurado, Jerome Pibernat, Manfred Grieser, Jan Glorius, Yuri Litvinov, Laurent Audouin, Bertram Blank, Klaus Blaum, Lucas Bégué--Guillou, Alex C (…)2026-02-26⚛️ nucl-ex

Ab initio calculations of nuclear charge radii across and beyond 132{}^{132}Sn: Putting chiral EFT nuclear interactions to the test

This study employs ab initio Bogoliubov coupled cluster calculations to demonstrate that current chiral effective field theory interactions fail to simultaneously reproduce the absolute charge radii, parabolic isotopic shifts, and the kink at 132{}^{132}Sn in the Tin chain, thereby highlighting the need for improved theoretical models and new experimental data to better constrain nuclear forces.

Pepijn Demol, Urban Vernik, Thomas Duguet, Alexander Tichai2026-02-26⚛️ nucl-ex