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

Photon-nucleon entanglement in Compton scattering at low and high energies

This paper investigates spin-spin entanglement in Compton scattering across low and high energy regimes, establishing a no-go theorem for real amplitudes in unpolarized scattering and demonstrating that polarized scattering off nucleons produces diverse maximally entangled states sensitive to electromagnetic polarizabilities, thereby proposing entanglement as a novel probe for nucleon structure.

Yoshitaka Hatta, Víctor Martínez-Fernández2026-08-07
⚛️ nuclear experiments

ePIC Early Science Report

This Early Science Report from the ePIC Collaboration demonstrates that the Electron-Ion Collider's initial years of operation, utilizing realistic beam configurations and detailed detector simulations, will deliver world-leading insights into Quantum Chromodynamics by addressing core scientific pillars such as nucleon mass origin, spin structure, and dense gluonic matter, while simultaneously establishing methodologies for the full physics program.

D. Abbott, N. Abdelrahman, S. Abhijit, I. Abualrob, R. B. Achari, J. Adam, L. Adamczyk, K. Adkins, A. Affolder, K. Agarw (…)2026-08-07
⚛️ nuclear experiments

Millisecond-Scale Neural Operator Surrogates for Double-Null Free-Boundary Grad-Shafranov Equilibria

This paper demonstrates that a geometrically conditioned Fourier Neural Operator can serve as a highly accurate, millisecond-scale surrogate for free-boundary Grad-Shafranov equilibria, achieving speedups of up to 640 times over traditional solvers while maintaining physics-consistent precision in predicting poloidal flux and plasma boundary locations.

Plamen G. Krastev (Harvard University)2026-08-07
⚛️ nuclear experiments

Three-baryon femtoscopy as an effective 3\rightarrow3 scattering experiment

This paper presents the first measurement of the three-proton correlation function in 13.6 TeV pp collisions at the LHC, demonstrating that three-hadron femtoscopy serves as an effective 3\rightarrow3 scattering experiment that reveals a novel long-range attractive component in the isospin 3/2 three-body system and opens new avenues for studying three-body dynamics in the strangeness sector.

ALICE Collaboration2026-08-07
⚛️ nuclear experiments

First measurement of kaonic helium-4 M-series transitions

The SIDDHARTA-2 experiment at the DAΦNE collider presents the first measurement of M-series transitions in kaonic helium-4 and significantly improves the statistical precision of the 2p level energy shift and width, providing new experimental insights into strong interaction effects and density-dependent transition yields.

F Sgaramella, D Sirghi, L Abbene, F Artibani, M Bazzi, D Bosnar, M Bragadireanu, A Buttacavoli, M Cargnelli, M Carminati (…)2026-08-06
⚛️ high-energy experiments

High precision X-ray spectroscopy of kaonic neon

The SIDDHARTA-2 collaboration successfully performed high-precision measurements of kaonic neon X-ray transitions at the DAΦ\PhiNE collider, demonstrating the feasibility of sub-eV spectroscopy with low-Z gaseous targets and providing critical data to refine theoretical models of de-excitation processes and test Quantum Electrodynamics in strange exotic atoms.

F Sgaramella, D Sirghi, K Toho, F Clozza, L Abbene, C Amsler, F Artibani, M Bazzi, G Borghi, D Bosnar, M Bragadireanu, A (…)2026-08-06
⚛️ nuclear experiments

Bayesian Inference of fine-features of dense matter EOS from future high-precision data of neutron star radii

Using a Bayesian framework with a meta-model equation of state and mock high-precision data, this study investigates how future X-ray and gravitational wave observations of neutron star radii with sub-0.1 km accuracy will constrain the fine-features of dense matter, including hadronic and quark phases and their transition.

Bao-An Li, Xavier Grundler, Wen-Jie Xie, Nai-Bo Zhang2026-08-06
⚛️ nuclear experiments

First Results on Nucleon Resonance Electroexcitation Amplitudes from epeπ+πpep \to e'\pi^+\pi^-p' Cross Sections at WW from $1.56-1.76$ GeV and Q2Q^2 from $2.0-5.0GeV GeV^2$

This paper presents the first electroexcitation amplitudes for nucleon resonances in the third resonance region, derived from π+πp\pi^+\pi^-p electroproduction cross sections measured by the CLAS detector, which successfully extract electrocouplings for established states like N(1675)N(1675) and N(1680)N(1680), provide new data for Δ(1700)\Delta(1700) and N(1720)N(1720) at Q2>2.0Q^2 > 2.0 GeV2^2, and reveal evidence for a new N(1720)N'(1720) state.

V. I. Mokeev, P. Achenbach, V. D. Burkert, D. S. Carman, R. W. Gothe, E. L. Isupov, K. Joo, K. Neupane, Y. Wunderlich2026-08-06