449 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 proposes using time modulation in weak nuclear decays as a probe for axion dark matter, deriving a theoretical framework to predict such variations, constraining axion parameters using existing Gran Sasso data on K and Cs, and suggesting a new electron capture measurement to extend sensitivity to higher axion masses.
This paper demonstrates that while global multiplicity fluctuations introduce a constant vertical offset in the differential radial flow observable , only the shape of this distribution (or its derivative) contains genuine physical information about radial-flow dynamics, rendering its zero-crossing point physically insignificant.
This contribution employs principal component analysis to decompose event-by-event spectral fluctuations in heavy-ion collisions into distinct thermal and geometric normal modes, establishing a physical analogy to molecular vibrations that explains key experimental observables such as and the sign change at low in .
Motivated by applications in neutrino mass experiments and precision spectroscopy, this paper presents calculations of energy-dependent elastic scattering cross sections for hydrogen, deuterium, and tritium on helium isotopes, revealing that tritium scattering is significantly enhanced at low energies due to a near-threshold s-wave resonant bound state before converging to a geometric limit at higher energies.
This paper proposes a statistical model analysis of heavy-ion collisions that quantitatively extracts baryon-stopping parameters from isobar data and introduces a new oxygen-baseline observable to systematically probe neutron-skin thickness across various collision systems and energies.
This paper presents the first quark-gluon level tomographic image of the helium-4 nucleus by analyzing coherent deeply virtual Compton scattering data with essential kinematic higher-twist and next-to-leading-order strong coupling corrections.
This paper presents the first experimental confirmation that nuclear spin alignment in polarized ions is preserved after being heated and accelerated to MeV energies by a high-power laser, validating the feasibility of using pre-polarized targets for future fusion and particle beam applications.
This paper reports the first measurement of photonuclear meson production in ultraperipheral lead-lead collisions using CMS data, providing new insights into the parton distribution functions of lead nuclei at low momentum fractions.
This paper presents the first measurement of bottom quark jet substructure and fragmentation functions in 5.02 TeV proton-proton collisions using a novel algorithm to cluster charged b-hadron decay daughters, providing experimental evidence for the dead-cone effect through the observation of suppressed emissions at small radii compared to inclusive jets.
An analysis of global deep-inelastic scattering data reveals that nuclear modifications to nucleon structure functions remarkably cancel out in the valence quark region (), resulting in an isoscalar cross-section ratio near unity across all nuclei.