1402 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 paper utilizes Born-Oppenheimer Effective Field Theory and lattice QCD calculations to demonstrate that the near-degeneracy and specific decay patterns of the hidden-bottom tetraquarks and arise from the degeneracy of their underlying light degrees of freedom, identified as and adjoint mesons.
This paper presents the first next-to-next-to-next-to-leading order (NLO) calculation of unpolarized semi-inclusive deep-inelastic scattering in perturbative QCD, utilizing a novel two-dimensional transverse-momentum subtraction method to establish a fully differential theoretical framework that enables precision nucleon tomography for upcoming Electron-Ion Collider experiments.
This paper analyzes KEDR and BESIII experimental data for the to hadrons R-ratio below the charm threshold using perturbative QCD at various truncation orders to extract values, revealing a significant dependence of the results on the order of the approximation and highlighting the importance of handling analytical continuation effects.
Using the energy scan method with BESIII data, this paper presents the first measurement of the cross section around the resonance, revealing two distinct solutions for the branching fraction and relative phase while establishing the critical role of interference effects and reporting the first results for the strong form factor and the charged kaon's electromagnetic form factor in this energy region.
This paper establishes species-resolved azimuthal anisotropy scaling functions across a wide range of beam energies to quantitatively separate viscous and hadronic effects, revealing a non-monotonic viscosity behavior near the QCD critical region and providing strong evidence for baryon junction-driven net-baryon transport at finite baryon chemical potential.
This paper applies finite-size scaling to net-baryon cumulant ratios from Au+Au collisions across the Beam Energy Scan Phase I range, revealing a universal collapse consistent with 3D Ising critical behavior and pinpointing the QCD critical end point at approximately GeV ( MeV, MeV).
This paper proposes a minimal extension of the Standard Model featuring a -stabilized complex scalar dark matter candidate coupled to up-type quarks via a heavy vector-like quark, successfully addressing up-type flavor-changing neutral currents and dark matter relic density while offering testable signatures at future muon colliders.
This paper demonstrates that existing torsion balance experiments, originally designed to test the Equivalence Principle, already provide the most stringent constraints on sub-eV dark matter scattering with nucleons by leveraging coherence-enhanced signals from repeated interactions.
This paper proposes a new, efficient method for determining non-perturbatively renormalized quark masses using gradient flow and short-flow-time expansion with RG-improved matching to the -scheme, successfully applying it to RBC/UKQCD ensembles to obtain precise values for the strange and charm quark masses.
This paper investigates a scotogenic extension of the Standard Model with two inert doublets and three singlet Majorana fermions, identifying viable parameter spaces for radiative neutrino mass generation and dark matter while revealing that approximately 60% of these regions are excluded by recent CMS measurements of the boson mass due to constraints on the oblique parameter .