1434 papers
Hep-Ex explores the fascinating intersection where particle physics meets experimental reality. This field investigates how scientists build massive detectors and accelerate particles to test the fundamental laws of nature, turning abstract theories into measurable data. It is the rigorous process of searching for new particles or forces that could reshape our understanding of the universe, often requiring years of collaboration and engineering.
At Gist.Science, we ensure these discoveries become accessible to everyone. We process every new preprint in this category directly from arXiv, generating both plain-language explanations for curious readers and detailed technical summaries for specialists. Our goal is to bridge the gap between complex experimental results and public understanding without losing scientific nuance.
Below are the latest papers in Hep-Ex, freshly summarized and ready for you to explore.
This Letter presents a consistent matching of short-distance contributions and hadronic matrix elements for pion decay and decays beyond leading-logarithmic accuracy using recent lattice QCD results, thereby significantly reducing theoretical uncertainties to enable more precise future determinations of and the muon's anomalous magnetic moment.
This study presents the first exploratory lattice QCD calculation of nucleon unpolarized, helicity, and transversity parton distribution functions using boosted correlators in the Coulomb gauge, demonstrating that the method yields results compatible with global analyses for valence-quark distributions while highlighting the need to address excited-state contamination in full-quark-channel extractions.
This paper outlines NOvA's current search strategy for eV-scale sterile neutrinos using NuMI beam data and details future plans to incorporate Booster Neutrino Beam data to enhance sensitivity in the systematics-limited high parameter space favored by experimental anomalies.
This study investigates charged-particle multiplicity distributions in high-energy p-O collisions across various energies and pseudorapidity intervals using Pythia and -factorization approaches, revealing that the choice of initial oxygen nucleus configuration (specifically -cluster versus Woods-Saxon models) and the theoretical formalism significantly influence the resulting multiplicity profiles, particularly at large multiplicities and higher pseudorapidities.
Using a large data sample of events collected by the BESIII detector, researchers performed a partial-wave analysis that revealed a new excited baryon state with a statistical significance of , measuring its mass, width, favored spin-parity of , and associated branching fractions.
This paper presents the first complete next-to-next-to-next-to-leading order QCD calculation of heavy-to-light semi-leptonic decay structure functions, enabling precision predictions for triple differential rates that are crucial for determining CKM matrix elements and resolving tensions in measurements.
This paper derives the complete set of positivity bounds for leading-twist parton distribution functions of spin-3/2 hadrons by generalizing the Soffer bound through the analysis of antiparton-hadron scattering amplitudes and the positive definiteness of the scattering amplitude matrix.
This paper demonstrates that the glass scintillator SG101 is a promising candidate for high-efficiency thermal neutron detection and precise event tagging, exhibiting superior pulse shape discrimination performance and significant physical correlations when coupled with organic scintillators like EJ200 and EJ276.
The authors report the first successful demonstration of an annular AlMn Transition-Edge Sensor (TES) for X-ray detection, achieving a record-breaking energy resolution of 12.1 eV at 17.48 keV (below 0.1%), thereby validating AlMn alloys as a promising alternative to traditional bilayer TESs for high-resolution X-ray spectrometry.
This paper presents the first complete perturbative QCD corrections to heavy-to-light structure functions using a hybrid computational strategy, providing state-of-the-art predictions for semi-leptonic -meson decays and revealing novel boundary-effect terms essential for consistent mass-scheme reformulations at third order.