1426 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 chapter introduces the fundamentals of the three-flavor neutrino oscillation paradigm, detailing the six undetermined oscillation parameters, the experimental history of the phenomenon, and the theoretical framework including matter effects that guide current large-scale particle physics experiments.
This paper presents a quantum machine learning approach using rotationally symmetric quanvolutional neural networks to classify track-like and shower-like topologies in LArTPC neutrino events, finding that while these quantum models outperform similarly sized classical networks, they are ultimately surpassed by classical models with significantly more parameters.
Using low-energy electronic recoil data from the first science run of the XENONnT detector and a novel model accounting for charge cancellation effects, researchers established world-leading constraints on spontaneous quantum collapse models that exclude the original parameters of the Continuous Spontaneous Localization theory for the first time.
This paper proposes enhancing the phenomenological application of the Boyd-Grinstein-Lebed -expansion for hadronic form factors by explicitly incorporating a unitarity filter derived from its equivalence to the Dispersion Matrix method and by introducing kernel functions to apply multiple dispersive bounds, thereby enabling more rigorous, model-independent analyses of various physical processes.
This paper extends a multiple dispersive bounds strategy to sub-threshold branch-cuts by modifying the standard -expansion to simultaneously incorporate pair-production and sub-threshold constraints, demonstrating through numerical analysis of the charged kaon form factor that this double-bound approach yields more precise extrapolations and greater stability against outer function choices than existing single-bound methodologies.
Using data from the CLAS12 spectrometer at Jefferson Lab, this paper reports the most precise measurement to date of the longitudinal spin transfer to hyperons in electron-proton scattering, providing critical insights into the relative dominance of current and target fragmentation mechanisms in production.
Using 138 fb of proton-proton collision data at = 13 TeV collected by the CMS experiment, this paper presents measurements of differential cross sections and the leptonic charge asymmetry for top quark-antiquark pair production in association with a W boson, finding that normalized distributions agree with Standard Model predictions while absolute cross sections are slightly higher, consistent with previous inclusive results.
This study utilizes PYTHIA8 simulations to investigate the correlation between prompt and nonprompt production and transverse spherocity in 13 TeV $pp$ collisions, demonstrating how this event-shape observable can distinguish hard QCD processes from underlying events influenced by multiple parton interactions.
This study proposes that medium vorticity induces spin-dependent dissociation of quarkonia via a modified color-singlet potential, thereby altering their spin alignment () in Pb--Pb collisions at TeV and offering new insights into the microscopic dynamics of the vortical quark-gluon plasma.
This paper summarizes the current status of next-to-leading-order electroweak corrections to double-Higgs production within Standard Model and Higgs Effective Field Theory frameworks, highlighting how these calculations enhance sensitivity to Higgs self-couplings and provide complementary constraints on the Higgs potential for future collider experiments.