1434 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 measurements of dielectron production in proton-proton and proton-lead collisions at = 5.02 TeV using the ALICE detector, determining charm and beauty cross sections in pp collisions and finding that the pPb results are consistent with expectations without nuclear matter effects while providing the first direct comparison of these systems via the nuclear modification factor .
By modeling resonance decay effects on pion and kaon-proton correlations in 13 TeV pp collisions, this study demonstrates that a universal, collectively scaling primordial emission source exists for all hadron species in small collision systems at the LHC.
This paper demonstrates that applying Standard Model Effective Field Theory to low-energy JADE experiment data not only reveals physics beyond QED but also enables a rough measurement of W and Z boson masses, challenging the notion that EFT discoveries provide no insight into the nature of new physics and suggesting such findings could effectively guide the design of future colliders.
The ALICE Collaboration measured the inclusive production cross section of isolated prompt photons in pp and p-Pb collisions at various LHC energies, observing a low-transverse-momentum suppression in p-Pb collisions consistent with nuclear shadowing effects predicted by perturbative QCD.
The ALICE collaboration at the LHC has provided model-independent evidence that approximately 90% of deuterons and antideuterons in high-energy proton-proton collisions are formed via nuclear reactions following the decay of short-lived resonances, thereby resolving a key gap in understanding light (anti)nuclei production in ultra-relativistic environments.
This paper demonstrates that utilizing linearly polarized photon fusion and novel azimuthal asymmetry observables at future lepton colliders, such as the Super Tau-Charm Facility, can significantly enhance the precision of measurements of the tau lepton's anomalous magnetic and electric dipole moments, approaching Standard Model prediction levels.
This paper presents the architecture, deployment, and performance metrics, including event rates and recognition efficiency, of the scintillation-light-based trigger system used during the first two physics runs of the ICARUS liquid argon TPC detector at Fermilab.
The paper proposes CARAMEL, a compact and scalable axion dark matter detection strategy that utilizes electro-optic crystals and externally injected radio-frequency power to amplify and optically read out axion-induced ellipticity modulations in the 0.5–50 GHz range, thereby enabling high-sensitivity searches across the preferred post-inflationary Peccei–Quinn axion mass parameter space.
The ALICE experiment measured the transverse momentum spectra and integrated yields of anti- hyperons in pp and p-Pb collisions at TeV using a novel antineutron reconstruction method, finding that while multiparton-interaction models best describe the high- spectra, all tested models reproduce the total yields and nuclear modification factors within uncertainties.
This paper reports on the multiplicity dependence of f(980) production in pp collisions at TeV using the ALICE detector, finding that yield ratios decrease with increasing multiplicity and that thermal model comparisons suggest the f(980) does not contain significant hidden strangeness.