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 presents a novel high voltage delivery system design for the nEXO noble liquid time projection chamber, addressing stability challenges and radiopurity requirements to prevent electrical discharges while offering guidance for future experiments in similar environments.
Using BESIII data, this paper reports the first measurement of Born cross sections for across 3.51–4.95 GeV and presents the first observation of the decay with a significance of 5.5.
This workshop report outlines a comprehensive strategy for advancing sustainability and ethics in ErUM-Data research by integrating technical measures like CO2 reduction and AI governance with cultural shifts in education, funding, and community engagement to embed responsible practices into everyday scientific workflows.
Using 4.5 fb of annihilation data from the BESIII detector, this study presents the first measurement of longitudinal polarization in inclusive decays, reports a fourfold improvement in the precision of the absolute branching fraction, and finds no evidence for CP violation in either polarization or direct asymmetries.
This paper presents a systematic QCD sum-rule analysis of charged kaons in hot and dense matter, deriving their in-medium masses and decay constants to reveal a significant mass splitting driven by baryonic interactions and identifying a critical density threshold that signals the onset of chiral symmetry restoration.
The paper introduces AUSSIE, a novel method for correcting LHC detector effects that achieves asymptotically correct unfolding without relying on iterations, adversarial training, or surrogate forward mappings by employing a new loss function to minimize dependence on reference simulations.
This paper evaluates the sensitivity of searching for dark photons at Belle II via displaced vertices by calculating and analyzing the impact of problematic backgrounds, specifically displaced photon conversions and prompt backgrounds, which challenge the assumption of a background-free search.
This paper demonstrates that combining the next-generation long-baseline experiments DUNE and T2HK significantly enhances the precision of neutrino oscillation parameters and , enabling the exclusion of the wrong octant at approximately confidence and improving current measurement precisions by factors of 5 to 7, even with reduced exposure compared to their individual capabilities.
This paper derives the probability for chiral oscillation of Majorana neutrinos within quantum field theory by utilizing the Bogoliubov transformation to relate lepton number eigenstates at different times, thereby characterizing the time variation of lepton number as a transition amplitude.
This paper investigates the interplay between dark matter scattering and light mediator absorption in direct detection experiments for Dirac and atomic dark matter models, identifying viable parameter spaces constrained by cosmology and astrophysics while highlighting the importance of distinguishing these signals to uncover the underlying physics.