547 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.
Using a unified purely hadronic equation of state with an incompressibility of 230 MeV, the study successfully reproduces proton flow data in Au+Au collisions up to 4.3 GeV but fails at 4.5 GeV, providing circumstantial evidence for the onset of partonic degrees of freedom and the hadron-quark phase transition.
This study presents the first microscopic characterization of fission fragment spin-parity distributions using time-dependent Hartree-Fock-Bogoliubov calculations, revealing that dynamical pair breaking significantly populates unnatural-parity states and creates parity patterns dependent on fragment mass parity, thereby challenging the equiprobable assumptions of current statistical de-excitation models.
This study calculates the nuclear matrix elements and half-lives for the two-neutrino double-electron capture of Xe and double-beta decay of Xe using four different many-body methods, finding consistent predictions that suggest Xe's half-life may be within reach of next-generation experiments while Xe's is approximately an order of magnitude longer.
This paper improves the analysis of quark confinement in the proton by incorporating light-cone QCD sum rules and formulating the quark force reconstruction as a regularized inverse problem, yielding a less model-dependent determination that remains consistent with a linear QCD potential.
This paper reviews the historical achievements of the CERN SPS fixed-target program in Quark-Gluon Plasma studies and outlines the future physics program involving NA61 and the newly approved NA60+/DiCE experiment to further explore the QCD phase diagram at finite baryon chemical potential.
By comparing gravitational-wave merger rates with gamma-ray burst observations, this study identifies a characteristic neutron star mass threshold that distinguishes burst durations and establishes a novel method for constraining the maximum mass of neutron stars and their equation of state.
This paper analyzes the contribution to the Li reaction using an effective operator, demonstrating that isoscalar transitions are forbidden without distortion and that the dominant contribution arises from transitions to isospin 1 components, a finding that may resolve existing discrepancies in the literature.
Using lattice QCD simulations with four physical-mass quark flavors, this study determines the momentum fractions and angular momentum contributions of quarks and gluons in the proton, confirming that both the momentum and spin sum rules are satisfied in the continuum limit.
This paper presents data-driven hydrodynamic predictions for the new observable in Pb+Pb collisions at 5.02 TeV, demonstrating its ability to reproduce existing data and forecasting unique features such as meson-baryon splitting and non-monotonic proton behavior that distinguish it from traditional flow observables.
Using the J-PET detection system, researchers performed the first measurements of the Dalitz plot for ortho-positronium decay into three photons, achieving high precision across nearly the entire phase space and confirming consistency with leading-order and next-to-leading-order QED predictions.