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.
The paper proposes "Unified Flavor," a framework where hierarchical Yukawa couplings and CP violation emerge from TeV-scale vectorlike fermion chains on a -lattice governed by a single flavon, successfully reproducing quark and lepton mass spectra while simultaneously addressing flavor constraints, strong CP, and offering testable predictions for future experiments.
This paper proposes leveraging high-energy colliders as quantum machines to advance quantum simulations in collider physics, specifically demonstrating applications in identifying causal structures within multiloop vacuum amplitudes and performing high-dimensional function integration to develop fully fledged quantum event generators.
This paper reports the first measurement of the cosmic muon flux at the Stawell Underground Physics Laboratory using eight plastic scintillator panels, yielding a value of (6.33 ± 0.04_stat ± 0.35_sys) × 10⁻⁸ s⁻¹ cm⁻² that aligns well with simulations and features significantly reduced uncertainty compared to modeling.
The study validates the PACIAE 4.0 model's reliability in describing particle production in proton-antiproton collisions and demonstrates that initial-state baryon-number differences significantly enhance low-energy nucleon production while having negligible effects at high energies or for high-multiplicity particles.
This paper proposes that the Dark Technicolour paradigm, utilizing the Extended Most Attractive Channel hypothesis across three confining gauge sectors, revitalizes conventional Technicolour dynamics to generate Standard Model fermion masses and resolve the Flavor Problem through a hierarchical structure of multifermion condensates.
Using 137 fb⁻¹ of 13 TeV proton-proton collision data from the ATLAS detector, this study searches for long-lived particles via displaced vertices and missing transverse momentum, finding no significant excess over Standard Model backgrounds and setting 95% confidence-level limits on four specific beyond-the-Standard Model scenarios.
This paper introduces PoLAr-MAE, a self-supervised masked point modeling framework for Liquid Argon Time Projection Chamber (LArTPC) data that learns physically meaningful trajectory representations from unlabeled events, achieving state-of-the-art segmentation performance with minimal labeled data and demonstrating the potential for a universal foundation model in particle physics.
This paper investigates the sensitivity of a 2 TeV same-sign muon collider (μTRISTAN) to eight distinct dimension-seven SMEFT operators via processes, demonstrating its potential to probe lepton number violation beyond existing LHC constraints and future FCC projections.
This paper presents the first full Dalitz plot measurement of neutron beta-decay phase space using the Nab spectrometer to test the Standard Model and establish new constraints on a hypothesized excited neutron state that could resolve the neutron lifetime discrepancy.
This paper details the production of the radioactive isotope Ar via thermal neutron irradiation of Ar and validates its effectiveness as a precise, low-energy calibration source for liquid xenon time projection chambers used in dark matter experiments.