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 proposes a TeV-scale model utilizing vector-like fermions arranged in "chains" to generate the Standard Model fermion mass hierarchy and neutrino masses while suppressing flavor and CP violation, offering testable predictions for current and future colliders.
This paper presents a hardware-aware model-compression workflow for a GNN-based hit-filtering algorithm deployed on FPGAs in the Belle II Level-1 trigger, achieving a reduction in computational cost by over two orders of magnitude through techniques like 4-bit fixed-point arithmetic and pruning while maintaining high hit efficiency and background rejection performance.
This paper presents a systematic phenomenological analysis of Dark Photon-mediated Inelastic Dark Matter, demonstrating that while current direct and indirect searches cannot access the parameter space yielding the correct relic abundance, future Long-Lived Particle searches at the LHC (specifically FASER and FASER 2) and neutron star observations offer significant potential to probe or rule out this model.
Using 138 fb of proton-proton collision data at = 13 TeV, a search for new resonances decaying into Higgs boson pairs or a Higgs boson and a scalar boson in the bbZZ final state found no significant deviations from Standard Model predictions, resulting in the establishment of 95% confidence level upper limits on the production cross sections for these processes.
This study demonstrates that future Muon Colliders operating at 3 TeV and 10 TeV will offer significantly enhanced sensitivity to anomalous quartic gauge couplings via and vector boson scattering, surpassing current LHC constraints and projected limits from future hadron colliders through advanced multivariate analysis and rigorous unitarity preservation.
This paper presents the first measurement of jet axis decorrelation in photon-tagged jets from PbPb and pp collisions at 5.02 TeV, revealing a narrowing effect for high-transverse-momentum jets in central PbPb collisions that is compared against theoretical models of parton energy loss in the quark-gluon plasma.
The RadioAxion experiment, conducted underground at Gran Sasso using a NaI detector to monitor the $59.5$ keV line from decay, found no evidence of periodic modulations indicative of axion dark matter and consequently established new constraints on the axion decay constant for masses between and eV.
This paper proposes and validates a robust, general-purpose Bayesian method for averaging inconsistent data sets by treating input uncertainties as lower bounds to better handle outliers, demonstrating its effectiveness across various scientific domains and providing a freely available Python implementation.
This paper utilizes the MadGraph5_aMC@NLO framework to investigate electroweak corrections and heavy boson radiation at high-energy muon colliders, specifically evaluating the accuracy of the Denner-Pozzorini Sudakov approximation against exact NLO calculations and assessing the impact of resummation and weak boson emissions at 3 and 10 TeV.
This ALICE study introduces the new observable to measure long-range transverse momentum correlations in Pb-Pb collisions at 5.02 TeV, revealing mass-dependent flow patterns consistent with hydrodynamics and quark recombination while demonstrating its sensitivity to bulk viscosity and the equation of state for constraining the properties of strongly interacting matter.