2101 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 investigates how the running of the QCD coupling affects anti-collinear resummation in JIMWLK evolution, deriving a resummed BFKL kernel that reveals a significant reduction in the Pomeron intercept due to combined resummation and coupling effects, despite a surprising cancellation that leaves the characteristic function at unchanged.
This paper reports on the successful commissioning and operation of the fully integrated, low-latency (1.053 µs) Graph Neural Network Electromagnetic Calorimeter Trigger Module at the Belle II experiment, which utilizes hardware-algorithm co-design and online monitoring to achieve bit-accurate performance compatible with the system's first-level trigger requirements.
Using approximately 1.3 kg-day of data from the DAMIC-M prototype detector, this study establishes competitive 90% confidence level upper limits on the dark matter-electron scattering cross section for sub-MeV solar-reflected dark matter, effectively probing a mass regime inaccessible to standard halo searches.
Using QCD sum rules, this paper predicts the mass and decay width of the fully-beauty tensor tetraquark , concluding that while it is stable against strong decays into heavy meson pairs, it transforms into conventional particles via annihilation with a calculated width of MeV.
This report summarizes the 7th ALEGRO workshop held in March 2026, which brought together the international community to review progress in advanced wakefield accelerators, discuss the design of a future 10 TeV linear collider, and explore applications ranging from high-energy physics to free-electron lasers and AI-driven accelerator control.
This paper presents the first next-to-leading order calculation of and transition form factors using soft-collinear effective theory light-cone sum rules, deriving factorization formulae, isolating excited states from ground-state contamination, and providing phenomenological predictions for branching fractions and lepton flavor universality ratios.
Using 127 fb of 13 TeV proton-proton collision data collected via the CMS data scouting stream, this study searches for soft unclustered energy patterns predicted by hidden-valley models, finds no evidence beyond standard model backgrounds, and sets the most stringent limits to date on gluon fusion production of heavy scalar mediators.
Using ATLAS detector data from proton-proton collisions at 13 TeV and 13.6 TeV, this study searches for the rare Higgs boson decay to a Z boson and a photon, finding results consistent with Standard Model predictions with an observed significance of 2.5 standard deviations when combining datasets.
Based on 138 fb of proton-proton collision data at 13 TeV collected by the CMS experiment, this paper presents a combined statistical analysis of searches for heavy vector boson resonances that finds no deviation from the Standard Model and sets the most stringent constraints to date on the Heavy Vector Triplet model, excluding resonance masses up to 5.5 TeV depending on the coupling scenario.
Using 408 fb⁻¹ of data from the Belle II detector, researchers searched for axion-like particles decaying into two photons across a mass range of 0.17 to 9.80 GeV/c², found no significant excess, and established the most restrictive upper limits to date on the ALP-photon coupling for masses below 5.00 GeV/c².