2521 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 a unified framework to analyze combined data from LZ, PandaX-4T, and XENONnT, this study suggests that velocity-dependent or inelastic dark matter interactions could explain high-energy nuclear-recoil-like events with up to 3.5σ significance, though these findings are highly sensitive to uncertainties in Xe double electron capture backgrounds.
Using 8.4 fb of LHCb proton-proton collision data, this paper presents a comprehensive analysis of the decay that includes the first full set of S-wave observables and muon mass effects, confirming that the measured -averaged observables and branching fractions continue to exhibit tensions with Standard Model predictions.
This paper investigates the electromagnetic properties of fully charm tetraquarks by deriving analytical expressions for significant next-to-leading-order QCD corrections to their two-photon decay amplitudes and providing theoretical predictions for their production cross sections in ultra-peripheral and electron-positron collisions.
This paper demonstrates that a hybrid normalizing flow architecture can effectively model high-dimensional, non-Gaussian likelihoods in neutrino physics, achieving near-perfect sampling efficiency compared to Gaussian approximations while remaining closed-form and portable for downstream uncertainty propagation.
This paper proposes using high-energy photons that convert into electron-positron pairs within the Belle-II detector at lepton colliders to measure quantum information observables, demonstrating that single and double conversion processes can significantly probe phenomena such as Bell inequality violations, quantum discord, and steerability in GeV-scale diphoton systems.
This paper presents a renormalon-subtracted potential nonrelativistic QCD framework that combines variational and Green's function Monte Carlo methods with NNLO potentials to predict the masses of fully-heavy baryons and the binding properties of fully-heavy tetraquarks, achieving improved perturbative stability while identifying discrepancies with lattice QCD that are consistent with neglected corrections.
This paper calculates tensor-polarized parton distribution functions for the deuteron using a convolution model, revealing significant discrepancies with existing HERMES data that suggest the need for new theoretical mechanisms beyond a simple proton-neutron bound system, while providing predictions for upcoming experimental tests at Jefferson Lab and Fermilab.
This paper demonstrates that charged-current neutrino interactions on argon at facilities like DUNE and SBND can constrain in-medium hyperon potentials through final-state interaction observables, thereby providing critical inputs to resolve the hyperon puzzle in neutron star equations of state.
This paper demonstrates that quarkyonic matter, when dressed with in-medium hyperon potentials constrained by hypernuclear and neutrino data, statistically resolves the neutron-star hyperon puzzle by delaying the onset of charged hyperons and suppressing core strangeness, thereby allowing for hyperon-free stars while predicting a significantly reduced sensitivity of the maximum mass to hyperon potentials compared to mean-field models.
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.