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 elucidates how the Chiral Quark Soliton Model (CQSM), by uniquely incorporating non-local quark-quark correlations arising from spontaneous chiral symmetry breaking, successfully predicts various nucleon parton distribution functions, particularly the flavor asymmetry of sea-quark distributions, outperforming traditional effective meson theories like the Skyrme model.
This paper presents the first search for electroweak-scale dijet resonances in the 100–250 GeV mass range using pile-up collisions recorded by the ATLAS detector at TeV, a novel strategy that bypasses high jet trigger thresholds to probe low-mass hadronic resonances without observing any significant excess over Standard Model expectations.
This paper presents preliminary studies and analysis ideas for tagging scattered charged fragments using the ATLAS Forward Proton detectors during the 2025 LHC oxygen and neon collision campaign.
Using proton-proton collision data at = 13.6 TeV collected by the CMS detector, this paper presents the most precise measurement to date of the mixing angle in the Higgs boson coupling to tau leptons, yielding a combined result of (7 16) that is consistent with the Standard Model prediction of a purely scalar interaction.
The paper proposes a Rydberg-atom-based single-photon detector for dark matter haloscope experiments in the 10–50 GHz frequency range, which overcomes quantum measurement noise limitations of standard linear amplifiers to achieve scan rate enhancements up to for searching QCD axions with masses above 40 eV.
Using proton-proton collision data from the LHCb detector, this study observes the radiative decay for the first time and measures a branching ratio that challenges the interpretation of the as a pure molecule, strongly suggesting it contains a significant compact charmonium or tetraquark component.
Using 3.19 fb of annihilation data collected at 4.178 GeV with the BESIII detector, this study measures the mass difference to be keV/, achieving a precision approximately seven times greater than the current Particle Data Group average.
This paper investigates polarization-induced interference and gauge cancellations in high-energy multi-leg processes involving resonant weak bosons by introducing analytical decompositions of polarized propagators and a BRST-guided grouping scheme to refine predictions beyond the narrow-width approximation across various case studies.
The paper discusses the dominance of the imaginary part of the elastic scattering amplitude and advocates for an approximation method based on this dominance.
This paper investigates the dependence of two-particle azimuthal correlations on the forward rapidity gap width in 8.16 TeV pPb collisions to determine if collective flow signatures persist in events enriched with photon-lead and pomeron-lead interactions, comparing the results against previous measurements and modern event generators.