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.

The NEXT-100 Detector

This paper presents a detailed description of the NEXT-100 detector's design, assembly, and radiopurity budget, alongside results from its commissioning run at the Laboratorio Subterráneo de Canfranc, which demonstrated stable operation and effective monitoring using alpha decays.

NEXT Collaboration, C. Adams, H. Almazán, V. Álvarez, A. I. Aranburu, L. Arazi, I. J. Arnquist, F. Auria-Luna, S. Ayet, Y. Ayyad, C. D. R. Azevedo, K. Bailey, F. Ballester, J. E. Barcelon, M. del Barr (…)2026-02-12⚛️ nucl-ex

Search for Dark Matter via Invisible Decays in 46{}^{46}Sc Nuclear Gamma Cascades with a CsI(Tl) Detector

Using a high-statistics CsI(Tl) detector and a high-activity 46{}^{46}Sc source at Texas A&M University, this study employs a "missing-γ\gamma" technique to search for invisible decays in nuclear gamma cascades, thereby excluding specific regions of parameter space for light dark-sector particles such as axions, dark scalars, and dark photons in the 0.1–1 MeV mass range.

Sharada Sahoo, Jing-han Chen, Mahdi Mirzakhani, Harikrishnan Ramani, Rupak Mahapatra, Surjeet Rajendran2026-02-12⚛️ nucl-ex

Correlations of Feed-down Hadrons in a Thermal Model

This paper demonstrates that strong decays of hadrons significantly alter the yields and correlations of stable particles in a thermal hadron gas model, thereby substantially impacting measurements of net quantum number cumulants and balance functions that are crucial for identifying the QCD critical point and determining chemical susceptibilities.

Claude Pruneau, Victor Gonzalez, Oveis Sheibani, Chun Shen, Yash Patley, Basanta Nandi, Ana Marin2026-02-12⚛️ nucl-ex

Probing αα clustering in 12C^{12}\mathrm{C} at CSR energies using the Jet AA Microscopic Transport Model

This study utilizes the Jet AA Microscopic Transport Model to demonstrate that α\alpha-clustering in 12C^{12}\mathrm{C} nuclei enhances geometric compactness and radial observables like proton mean transverse momentum, as well as flow magnitudes at high participant numbers, thereby offering complementary probes for investigating nuclear structure in low-energy collisions at CSR and HIAF energies.

Subhash Singha2026-02-12⚛️ nucl-ex

Prediction on total inventory of radioisotopes produced by the interaction of 20Ne beams on 181Ta (110-170 MeV)

This study utilizes Monte-Carlo PACE4 simulations to model the interaction of 108–170 MeV 20Ne beams with an 181Ta target, concluding that while reaction mechanisms and cross-sections were analyzed, this specific interaction is not a promising route for producing clinically useful neutron-deficient radioisotopes for nuclear medicine.

Sumana Mukherjee, Susanta Lahiri, Rajarshi Raut, Chiranjib Barman2026-02-12⚛️ nucl-ex

Improved linear Boltzmann transport model for hadron and jet suppression in ultra-relativistic heavy-ion collisions

This paper presents two key enhancements to the linear Boltzmann transport model—integrating medium interactions directly into vacuum parton showers and incorporating color flow information—to achieve a unified and accurate description of hadron and jet suppression in ultra-relativistic heavy-ion collisions.

Yichao Dang, Wen-Jing Xing, Shanshan Cao, Guang-You Qin2026-02-12⚛️ nucl-ex

Observation of flow vector fluctuations in p$-$Pb collisions at sNN=\mathbf{\sqrt{\textit{s}_{_{\bf NN}}}}= 5.02 TeV

This paper presents the first observation of significant transverse momentum and pseudorapidity dependent flow vector fluctuations in p$-$Pb collisions at sNN=5.02\sqrt{s_{_{\rm NN}}} = 5.02 TeV, confirming collective flow in small collision systems and providing critical constraints for theoretical models of initial geometry.

ALICE Collaboration2026-02-12⚛️ nucl-ex

Inclusive and multiplicity-dependent pseudorapidity densities of charged particles in pp collisions at s=13.6\mathbf{\sqrt{s} = 13.6} TeV

This paper presents the first measurements of inclusive and multiplicity-dependent pseudorapidity densities of charged particles in proton-proton collisions at the record center-of-mass energy of s=13.6\sqrt{s} = 13.6 TeV, revealing that particle production in high-multiplicity events follows a power-law scaling with energy and establishing a new reference for LHC physics.

ALICE Collaboration2026-02-12⚛️ nucl-ex

Search for direct reaction products in 197Au+ 20Ne from 108 to 171 MeV projectile energy

This paper reports the measurement of production cross sections for several potential direct reaction products (196,198^{196,198}Au and 199,200,201^{199,200,201}Tl) in 20^{20}Ne-induced reactions on a natural gold target at energies of 108–171 MeV, noting that while PACE4 successfully predicted some isotopes, it failed to account for the gold isotopes, and FLUKA significantly underpredicted all measured radionuclides.

Sumana Mukherjee, Susanta Lahiri, Sandipan Dasgupta, Jagannath Datta, Sujoy Chatterjee, Sharmishtha Bhattacharyya, Gopal Mukherjee, Chiranjib Barman2026-02-12⚛️ nucl-ex