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.
This paper presents the first fully consistent shell-model calculation of neutrinoless double-beta decay matrix elements for 48Ca, 76Ge, and 82Se, deriving both the nuclear Hamiltonian and decay operators from chiral perturbation theory via many-body perturbation theory while also assessing convergence and theoretical uncertainties.
Motivated by the proposed NuDoubt++ experiment, this paper analyzes positron-emitting and electron-capturing double-beta decay in candidate isotopes Kr, Cd, and Xe by providing nuclear matrix elements and phase-space factors for both standard and neutrinoless modes, demonstrating that these processes can probe lepton-number-violating new physics at scales of 1–100 TeV and resolve operator degeneracies when combined with conventional double-beta decay searches.
This study reports bremsstrahlung-averaged cross sections for various photon-induced reactions on natural nickel targets at a 40 MeV endpoint energy, revealing that while experimental data generally align with JENDL-5 and TALYS-2.2 predictions, the measured cross section for the channel is approximately double the JENDL-5 evaluation, highlighting a potential underestimation of charged-particle emission strength in current nuclear data libraries.
This paper investigates how track functions, which encode the flow of energy from partons to charged hadrons, are modified by the quark-gluon plasma in heavy-ion collisions, demonstrating that their non-linear evolution and higher moments can discriminate between different jet quenching models and provide a direct test of quantum field theory predictions within the medium.
This paper reports a high-statistics laboratory search for invisible decays in Sc nuclear cascades using a CsI(Tl) detector, which excludes specific regions of parameter space for light dark-sector particles like axions and dark scalars in the 0.1–1 MeV mass range while demonstrating the technique's potential to probe currently unexplored territory.
This paper constructs a chiral three-nucleon force tailored to the new local Idaho position-space two-nucleon potential, demonstrating that a hybrid local and nonlocal regulator improves the description of binding energies and radii for nuclei up to Sn when the force's low-energy constants are constrained by H and O.
This review highlights recent breakthroughs in extending uncertainty-quantified *ab initio* nuclear theory to heavy and complex nuclei, demonstrating how these advances significantly reduce nuclear-physics uncertainties in interpreting dark matter direct detection experiments.
This study utilizes high-statistics gamma-ray spectroscopy of Sm to identify new excited collective bands and transition strengths that provide evidence for X(5)-like critical-point symmetry structures extending beyond the well-known low-lying spectrum, thereby offering new constraints on shape-phase transitions in the N=90 region.
This paper characterizes single-crystal GaN:Si and ZnO:Ga as high-performance, fast-timing scintillators that significantly outperform traditional YAP:Ce in timing and position resolution, proposing them as superior drop-in replacements for alpha detectors in Associated Particle Imaging systems.
This paper establishes a new, model-insensitive scaling relation between the dimensionless tidal deformability of neutron stars and their central pressure-to-energy-density ratio, enabling gravitational-wave observations to directly probe the core equation of state of ultradense matter.