⚛️ Category

nucl-ex

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.

⚛️ nuclear theory

Secondary Hadron--Nucleus Collisions of Short-Lived Hadrons in Ultra-Relativistic Fixed-Target Heavy-Ion Interactions

This paper proposes that ultra-relativistic heavy-ion beams traversing solid targets can induce secondary hadron-nucleus collisions involving short-lived hadrons (such as η′\eta^\prime, J/ψJ/\psi, and ϕ\phi mesons) by leveraging extreme Lorentz contraction to extend their survival times, thereby enabling the study of species inaccessible in conventional secondary beam or cosmic-ray experiments.

Sanatan Digal, P. S. Saumia, Ajit M. Srivastava2026-07-10
⚛️ nuclear experiments

Fierz-complete four-quark interactions and the QCD phase diagram

Using the functional renormalization group approach, this study demonstrates that while scalar-pseudoscalar four-quark channels dominate in the vacuum, other channels become significant near the critical end point, collectively shifting the QCD critical end point to a higher baryon chemical potential and lower temperature while slightly increasing the curvature of the phase boundary.

Zi-ning Wang, Li-jun Zhou, Chuang Huang, Rui Wen, Shi Yin, Wei-jie Fu2026-07-09
⚛️ nuclear experiments

Single inclusive hadron and jet production in lepton-hadron scattering

This paper presents the first calculation of single inclusive hadron and jet production at large transverse momentum in lepton-hadron scattering using a joint QCD+QED factorization framework, which introduces universal lepton distribution functions with combined evolution kernels and provides predictions for experiments at Jefferson Lab and the future Electron-Ion Collider.

Jian-Wei Qiu, Kazuhiro Watanabe2026-07-09
⚛️ nuclear theory

Full configuration interaction quantum Monte Carlo for accurate ab initio\textit{ab initio} nuclear structure calculations: algorithms and calculation details

This paper presents a detailed application of Full Configuration Interaction Quantum Monte Carlo (FCIQMC) to *ab initio* nuclear structure calculations using chiral effective field theory interactions, validating the method against deterministic benchmarks and demonstrating its capability to compute ground-state properties and low-lying spectra in large model spaces.

Rongzhe Hu, Furong Xu, Baishan Hu, Ali Alavi2026-07-08
⚛️ nuclear experiments

A New Low Q2Q^2 Measurement of the Proton's g1g_1 Spin Structure Function from Longitudinal & Transverse Polarized Data

This paper presents new high-precision measurements of the proton's g1g_1 spin structure function at low momentum transfer from the Jefferson Lab E08-027 experiment, utilizing longitudinally polarized data to complement previously published transverse results and provide updated insights into proton spin sum rules and moments.

D. Ruth (Cummings), R. Zielinski (Cummings), C. Gu (Cummings), M. Allada (Cummings), T. Badman, M. Huang, J. Liu, P. Zhu (…)2026-07-08
⚛️ nuclear experiments

Resolution-matched nuclear geometry and the nucleon-size ambiguity in relativistic heavy-ion collisions

This paper resolves the ambiguity between nuclear structure and collision dynamics in relativistic heavy-ion collisions by demonstrating that matching the resolution of nuclear geometry to finite-resolution interactions eliminates nucleon-size dependence in cross-section calculations, thereby reframing these measurements as sensitive probes of the nuclear surface rather than standalone nucleon-size observables.

Hao-jie Xu2026-07-07
⚛️ nuclear experiments

Studying baryon number transport dynamics via hyperon-kaon correlations in p+Aup + \mathrm{Au} collisions at sNN=20\sqrt{s_{_{\rm NN}}}=20, $39$ and $62$ GeV

This paper utilizes AMPT and UrQMD models to simulate hyperon-kaon correlations in p+Aup + \mathrm{Au} collisions at 20, 39, and 62 GeV, establishing a baseline without baryon junction mechanisms to test theories of baryon number transport and strange quark pair correlations.

Siyuan Ping, Xiaozhou Yu, Long Ma2026-07-07
⚛️ nuclear experiments

SS matrices of elastic nn-16^{16}O scattering at low energies in cluster effective field theory

This study employs cluster effective field theory to successfully model the elastic nn-16^{16}O scattering SS matrices across seven spin-partial wave channels by fitting thirty-four parameters to ENDF/B-VIII.0 data, thereby providing insights into resonance uncertainties and the astrophysical SS factor for the 13^{13}C(α\alpha,nn)16^{16}O reaction.

Shung-Ichi Ando2026-07-07