1495 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 presents a unified theoretical description of experimental data for decays into and accompanied by pion or kaon pairs, utilizing unitary and analytic final-state interactions to reveal universal coupling patterns, a distinct non-charmonium nature for the , and the significant role of the resonance while predicting related branching fraction ratios and invariant mass distributions.
This paper reports the measurement of near-threshold photoproduction cross sections from the J/-007 experiment at Jefferson Lab, which, when combined with electron decay data and analyzed via Holographic QCD, yields precise constraints on the proton's gluonic gravitational form factor that agree with lattice QCD calculations and support a spatial picture of gluon dominance at larger radii with confining inward pressure.
This paper presents a hybrid quantum-classical framework that computes leading-order helicity amplitudes for scattering on gate-based quantum hardware to derive Standard Model and Effective Field Theory constraints consistent with precision collider data.
This paper proposes that future neutrino telescopes will utilize neutrinos as a robust, low-uncertainty mass tracer for the Milky Way's Central Molecular Zone, thereby refining star-formation models and improving gas measurements in distant galaxies.
This Letter of Intent outlines a proposal to develop a future experiment at the High-Intensity Muon Beam facility at PSI, aiming to improve current sensitivity by over an order of magnitude within the next decade to maintain leadership in searching for charged lepton flavor violation.
This paper investigates how a polarized electron beam at the proposed "Chiral Belle" upgrade of Belle II can distinguish the spin and Lorentz structure of invisibly decaying dark bosons by analyzing the polarization dependence of the mono-photon production channel ().
This paper proposes using asymmetric beam energies at muon colliders to boost forward muons into detector acceptance, thereby overcoming shielding limitations and improving the reconstruction of vector boson fusion processes like VBF Higgs production.
This paper surveys approximately 70 rare and exclusive few-body Standard Model Higgs boson decays with branching fractions below , providing theoretical predictions, current experimental limits, and HL-LHC projections—including 20 newly computed channels—to guide future research in constraining couplings, probing flavor-changing processes, and estimating backgrounds for exotic physics.
This paper demonstrates that a modified Double Logarithmic Approximation incorporating energy conservation accurately describes the inclusive charged-particle multiplicity distributions of quark- and gluon-initiated jets in 13 TeV $pp$ collisions, showing consistency with both ATLAS experimental data and PYTHIA simulations.
This paper utilizes the observed 11-year jet precession period of M87* to constrain the parameters of a rotating black hole in Bumblebee gravity, demonstrating how Lorentz-symmetry breaking affects spherical orbits and innermost stable spherical orbits, and suggesting that a warp radius exceeding 16 may indicate the presence of a non-vacuum Bumblebee vector field when combined with EHT shadow constraints.