2610 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 provides practical recommendations and considerations from researchers across major particle physics experiments on adopting emerging machine learning-based unbinned unfolding techniques to replace traditional binned histogram methods for more flexible, high-dimensional data analysis.
This paper presents a next-to-leading order QCD calculation of diboson production with leptonic decays and definite polarization states within the SMEFT framework, matched to parton showers to enable precise polarization-template and quantum-tomography analyses at the LHC.
This paper presents the design and characterization of a dual-readout photosensor system using Hamamatsu R8520-406 PMTs that successfully mitigates cosmic muon saturation to enable the RELICS experiment to detect coherent elastic neutrino-nucleus scattering signals at the surface level.
This paper presents a fully differential next-to-next-to-leading order QED calculation of the process, implemented in the McMule framework to enable precise luminosity measurements for electron-positron colliders with center-of-mass energies up to a few GeV.
The DAMSA conceptual design white paper proposes a novel short-baseline accelerator experiment utilizing the PIP-II LINAC to probe MeV-to-sub-GeV dark-sector messengers and rare Standard Model signals by overcoming beam-dump sensitivity limits with a compact detector, a strategy whose feasibility will be validated through the proposed Little DAMSA Path-Finder (LDPF) proof-of-concept experiment.
This whitepaper outlines a community vision for building a national-scale, AI-native research ecosystem that leverages current and future experimental facilities to accelerate discovery in experimental particle physics through transformative artificial intelligence integration.
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.
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.