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.
Using 138 fb of proton-proton collision data at 13 TeV collected by the CMS detector, this paper presents a statistical combination of vector boson scattering measurements in various leptonic final states, which confirms Standard Model predictions and enables a charge-separated analysis of W boson production asymmetry.
This paper investigates the minimal composite Higgs model by translating current and projected Higgs precision measurements from the LHC and FCC-ee into constraints on the vacuum alignment angle and the singlet pseudo-Nambu-Goldstone boson mass, demonstrating that future experiments will significantly tighten the lower bound on the singlet mass from approximately 440 GeV to over 2 TeV.
This paper utilizes non-observation data from the Pierre Auger Observatory to establish new, flavor-independent 90% confidence-level constraints on the transition magnetic moment between active and heavy sterile neutrinos (1–100 TeV), effectively extending existing bounds into previously unexplored parameter space by distinguishing enhanced interaction cross sections from flux variations.
This paper presents high-precision ALICE measurements of prompt charm hadron elliptic flow () in Pb-Pb and OO collisions at TeV, highlighting the first observation of baryon-meson splitting at intermediate and probing charm quark thermalization across systems of varying size.
The paper reports on the successful construction, commissioning, and beam test performance of the ENUBET Demonstrator, a full-size instrumented decay tunnel prototype that validates the scalability and effectiveness of its specialized calorimeter technology for neutrino monitoring via lepton identification.
Using a lattice Boltzmann-Uehling-Uhlenbeck transport model with a kinetic approach for light-cluster formation, this study demonstrates that explicitly including dynamical light-cluster degrees of freedom significantly modifies proton collective flows at beam energies below 600 A MeV and successfully reproduces the nucleon-number scaling of light nuclei flows, thereby highlighting the necessity of dynamical cluster treatment for interpreting heavy-ion collision data in this energy regime.
The TESSERACT Collaboration reports the first limits on light dark matter interactions between 44 and 87 MeV/ using a low-threshold, two-channel athermal phonon silicon detector operated above ground, achieving the most stringent constraints to date for this mass range and the lowest mass ever probed in direct detection experiments.
This paper presents a comprehensive environmental characterization of the Bedretto tunnel in Switzerland, demonstrating that its deep overburden, ultra-low background radiation, and exceptionally low seismic and magnetic noise levels make it a highly competitive and accessible site for next-generation fundamental physics experiments, including gravitational-wave detection.
The XENONnT collaboration reports a blinded search for light dark matter using 7.8 tonne-year of ionization-only data, finding no significant excess over background and setting improved 90% confidence level upper limits on various dark matter interaction cross-sections that push sensitivity closer to the irreducible neutrino background.
This paper examines the growth and impact of the ATLAS Collaboration's Virtual Visits programme since 2010, highlighting its success in bridging the gap between particle physics research and global audiences through live, interactive, and language-accessible tours, as evidenced by quantitative data and case studies from Brazil and Greece.