2160 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 review paper synthesizes current theoretical, cosmological, astrophysical, and experimental efforts to explore the theoretically motivated meV axion mass range, highlighting the convergence of diverse approaches aimed at discovering these particles as a key probe for beyond-Standard-Model physics.
This paper introduces ClusTEX, a novel single-step graph transformer that utilizes a geometry-aware positional encoding scheme to outperform standard algorithms and multi-step deep learning approaches in reconstructing overlapping electromagnetic showers, thereby improving energy resolution, reducing splitting rates, and maintaining robustness against detector failures in both toy and ECAL-inspired calorimeter simulations.
This paper presents the first lattice QCD calculation of form factors using 2+1 flavor domain-wall fermions and an anisotropic clover action for the bottom quark, which are then utilized to provide Standard-Model predictions for the branching fractions and angular observables of the rare decays and .
Using 7.33 fb of data collected by the BESIII detector, this study reports the first observation of the decay and measures an unexpectedly large branching fraction for the intermediate process with over significance, providing new constraints on the internal structure of light scalar mesons.
The ATLAS collaboration presents a combined effective field theory interpretation of vector-boson scattering and tri-boson measurements from 13 TeV proton-proton collisions to constrain anomalous quartic gauge boson couplings arising from dimension-8 operators, providing confidence intervals with and without unitarity constraints.
Using lattice QCD calculations on MILC ensembles with overlap and NRQCD actions, this study provides strong evidence for a deeply bound doubly bottom tetraquark in the isoscalar channel while finding no conclusive evidence for a bottom-strange counterpart.
The ALICE collaboration at the LHC reports the first measurement of the transverse-momentum differential production cross section of B mesons in proton-proton collisions at TeV down to , finding results consistent with perturbative quantum-chromodynamics models.
This paper demonstrates that the choice of prescription in the Collins-Soper-Sterman framework introduces a significant intrinsic theoretical uncertainty in Transverse Momentum Dependent distribution extractions, yielding consistent results for low-energy data but causing substantial discrepancies in intermediate-to-high energy predictions.
This study employs QCD light-cone sum rules to calculate the magnetic dipole moments of hidden-charm pentaquarks using four distinct diquark-diquark-antiquark interpolating currents, demonstrating that these electromagnetic observables are highly sensitive to internal quark configurations and can effectively discriminate between compact and molecular structural models.
This paper demonstrates that simulation-based inference methods, particularly optimal-observable estimators and robust likelihood-ratio approaches, offer superior or comparable sensitivity to anomalous couplings in the channel compared to traditional histogram analyses, highlighting their potential to surpass current LHC constraints with Run 3 data.