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.

A practical approach of measuring 238^{238}U and 232^{232}Th in liquid scintillator to sub-ppq level using ICP-MS

This study presents a practical method using acid extraction and ICP-MS to measure 238^{238}U and 232^{232}Th in liquid scintillator at sub-ppq levels with nearly 100% recovery efficiency and a detection limit of 0.2–0.3 ppq, achieved through rigorous cleanliness control and validated by three standard addition techniques.

Yuanxia Li, Jie Zhao, Yayun Ding, Tao Hu, Jiaxuan Ye, Jian Fang, Liangjian Wen2026-03-05🔬 physics

Magneto-νν: Heavy neutral lepton search using 241^{241}Pu ββ^- decays

The MAGNETO-ν\nu experiment utilized a high-statistics measurement of 241^{241}Pu β\beta^- decays with metallic magnetic calorimeters to find no evidence for keV-scale heavy neutral leptons, thereby establishing an upper limit of Ue42<1.31×103|U_{e4}|^2 < 1.31 \times 10^{-3} at 95% confidence for an 11.5-keV HNL mixing with the electron neutrino.

C. Lee, X. Zhang, A. Kavner, T. Parsons-Davis, D. Lee, N. Hines, S. T. P. Boyd, M. Loidl, X. Mougeot, M. Rodrigues, M. K. Lee, J. Song, R. Wood, I. Jovanovic, G. B. Kim2026-03-05🔬 physics

From Beam to Bedside: Reinforcing Domestic Supply of 99^{99}Mo/99m^{99m}Tc using Novel High-Current D+ Cyclotrons for Compact Neutron Generation and 99^{99}Mo Production

This paper proposes a novel, decentralized approach to securing the domestic supply of the medical isotope 99^{99}Mo by adapting high-current deuterium cyclotrons, originally designed for neutrino research, to generate sufficient neutrons for isotope production without relying on nuclear reactors or highly enriched uranium.

Jarrett Moon, Daniel Winklehner, Jose Alonso, Claire Huchthausen, David McClain, Janet Conrad2026-03-05🔬 physics

Evidence for Multimodal Superfluidity of Neutrons

This paper presents theoretical and experimental evidence for a new phase of matter called multimodal superfluidity in neutron-rich systems, characterized by the coexistence of s-wave pairs, p-wave entangled double pairs, and quartets, which is predicted to occur in various fermionic systems and has significant implications for the structure and dynamics of neutron star crusts.

Yuan-Zhuo Ma, Georgios Palkanoglou, Joseph Carlson, Stefano Gandolfi, Alexandros Gezerlis, Gabriel Given, Ashe Hicks, Dean Lee, Kevin E. Schmidt, Jiabin Yu2026-03-05🔭 astro-ph

Improved Pion-Kaon Identification in Heavy-Ion Collisions with a Two-Dimensional Transformation

This paper presents a novel two-dimensional shift and rotation method that leverages the correlation between time-of-flight mass-squared and ionization energy loss to significantly improve charged pion and kaon identification in heavy-ion collisions, extending the reliable measurement range to approximately 3 GeV/cc while maintaining over 98% purity and preserving elliptic flow consistency.

Shaowei Lan, Bijun Fan, Like Liu2026-03-05🔬 physics

Automatic calibration of gamma-ray detectors deployed in uncontrolled environments

This paper presents a novel, low-power, software-based calibration method for gamma-ray detectors that utilizes full-spectrum analysis and Monte-Carlo modeling to maintain stable energy calibration in uncontrolled environments, effectively eliminating the need for active temperature control while decoupling instrumental drift from environmental background fluctuations.

Marco Salathe, Nicolas Abgrall, Mark S. Bandstra, Tenzing H. Y. Joshi, Brian J. Quiter, Reynold J. Cooper2026-03-05🔬 physics