548 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 reports the first mass measurements of neutron-rich ytterbium isotopes (Yb), revealing an anomalously strong proton-neutron interaction in the "hole-hole" regime below Pb that challenges current mean-field models and aids in refining predictions for the r-process waiting point.
This paper demonstrates that a portable, two-meter neutron Time of Flight system utilizing Neutron Resonance Transmission Analysis can successfully identify and quantify the isotopic composition of special nuclear materials like HEU and reactor-grade plutonium within two hours with high accuracy, offering a promising tool for future arms control verification.
This paper utilizes the interacting boson model with configuration mixing, informed by microscopic mean-field calculations, to demonstrate that strong mixing between intruder prolate and normal oblate configurations drives the parabolic shape-coexistence behavior observed in the low-lying states of even-even tellurium isotopes near the middle of the neutron major shell.
This paper synthesizes new threshold measurements of production from JLab experiments (007 and CLAS12) with previous GlueX data to confirm a consistent phenomenological determination of the -proton scattering length, while highlighting how upcoming J-PARC measurements will further clarify the systematic trend of vector meson-nucleon interactions predicted by the "young vector meson" hypothesis.
This paper extracts the speed of sound in the quark-gluon plasma from ATLAS transverse momentum fluctuation data in ultra-central Pb+Pb collisions by correcting for detection biases and hadronization noise, yielding a result of that aligns perfectly with first-principles lattice QCD calculations.
This paper presents a comprehensive overview of recent ALICE measurements from Run 2 and Run 3 on photon-induced processes in ultra-peripheral collisions, covering exclusive vector meson photoproduction, nuclear breakup mechanisms, and inclusive photonuclear interactions to probe gluon saturation, quantum interference, and particle production dynamics in nuclear environments.
The JETSCAPE Collaboration employs Bayesian Inference with Active Learning to determine the jet transport parameter in the Quark-Gluon Plasma by simultaneously analyzing inclusive hadron and jet suppression data from RHIC and LHC, revealing systematic tensions that offer new insights into jet transport physics.
This study presents a precision measurement of bremsstrahlung gamma rays in Sn+Sn collisions at 25 MeV/u using the CSHINE spectrometer, establishing a robust experimental framework to extract a high momentum tail fraction of and demonstrating the feasibility of probing short-range correlations in low-energy heavy-ion reactions.
This paper proposes a novel high-density free-neutron target system, integrating a supercompact cyclotron with advanced moderation and cryogenic technologies, to enable high-luminosity neutron capture measurements on short-lived radioactive ions in storage rings for nuclear astrophysics research.
Using the STAR experiment at RHIC, researchers observed significant sequential suppression of charmonium states in Ru+Ru and Zr+Zr collisions at 200 GeV, demonstrating that the larger (2S) meson is suppressed more strongly than the J/ meson with a 5.6 standard deviation significance.