1442 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 the first fully differential predictions for Higgs-boson pair production via gluon-gluon fusion at NLO in the heavy-top limit, demonstrating a threefold reduction in scale uncertainties and incorporating top-quark mass effects to provide highly precise theoretical benchmarks for LHC searches.
The paper introduces CaloTrilogy, a unified framework that achieves high-quality, physics-guided particle shower generation for modern calorimeters in just one or a few inference steps by combining an average velocity field integrator, a data-derived generative prior, and training-time physics constraints, thereby overcoming the computational inefficiencies of existing flow and diffusion models.
Using combined datasets from the Belle and Belle II experiments, this study presents the most precise measurements to date of time-dependent $CP$ violation parameters in decays, finding results consistent with Standard Model predictions across both -dominated and non-resonant regions.
This paper proposes a general method for calculating kinematic limits in high-energy physics by identifying the vanishing of Lorentz invariants analogous to Cayley-Menger determinants, a technique applicable to processes involving lost particles like neutrinos and useful for suppressing background.
This paper proposes a parasitic high-energy polarized gamma-ray facility at FCC-ee using Compton backscattering to achieve a four- to seven-fold improvement in precision for measuring the polarized gluon distribution in the medium- region through open-charm photoproduction.
This paper investigates resonant triple Higgs production within the Next-to-minimal Two Higgs Doublet Model (N2HDM), demonstrating that interference effects and additional decay channels significantly alter kinematic distributions and necessitate fully differential studies over simplified approximations to accurately probe extended Higgs sectors at the LHC.
Using 164 fb of 13.6 TeV proton-proton collision data collected by the ATLAS detector, this study measures the cross section, sets the most stringent single-measurement upper limit on $tH$ production, and provides the most direct constraints to date on the CP structure of the Higgs-top Yukawa interaction by excluding a purely CP-odd coupling at 5.8 standard deviations.
This paper proposes a ferromagnet lattice magnetometer that coherently combines multiple levitated ferromagnets to significantly enhance sensitivity for detecting ultralight dark matter by suppressing dipole-dipole interactions and leveraging collective readout, thereby surpassing existing single-ferromagnet constraints across various coupling models.
This paper presents the first NNLL collinear resummation of projected -point energy correlators up to matched to NLO fixed-order predictions, achieved by computing new two-loop jet functions and incorporating leading non-perturbative corrections, thereby establishing quantitative control over these observables for future precision extractions.
This paper proposes a specific radiative neutrino mass model where a Dirac fermion dark matter candidate undergoes semi-annihilation to produce boosted dark matter and neutrinos, predicting a mediator mass of MeV that enhances scattering cross-sections to levels detectable by future experiments like DUNE and DARWIN.