2117 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 novel quantum entanglement-based approach on 190 million events, the Belle II collaboration reports the first measurement of mixing-induced CP violation in decays, achieving unprecedented precision that significantly tightens constraints on the quark-mixing phase with far less data than previously thought necessary.
This paper investigates whether the next-generation helioscope IAXO can distinguish between signals from single versus multiple axion species by analyzing spectral signatures of axion flavor oscillations and mapping detection prospects in multi-axion parameter spaces.
This paper demonstrates that CPT violation can mimic the CP-violating phase in long-baseline neutrino experiments, potentially obscuring true measurements, and proposes using atmospheric neutrino data from IceCube and KM3NeT to constrain such violations and ensure unambiguous CP phase determination.
This paper investigates composite neutrino models where an inverse seesaw mechanism with anomalous scaling dimensions suppresses light neutrino masses while generating enhanced electromagnetic dipole moments, leading to distinctive single- and multi-photon radiative signatures in MiniBooNE and MINERvA experiments that serve as a novel probe of partial compositeness.
This review highlights recent breakthroughs in extending uncertainty-quantified *ab initio* nuclear theory to heavy and complex nuclei, demonstrating how these advances significantly reduce nuclear-physics uncertainties in interpreting dark matter direct detection experiments.
Using archived ALEPH data from LEP2, this study analyzes two-particle angular correlations in high-multiplicity collisions at 183–209 GeV and reports the observation of a ridge-like modulation and a sign change in harmonic coefficients for multiplicities above 30–50, which deviate from Monte Carlo predictions and suggest the emergence of long-range near-side correlations potentially linked to production.
This paper presents an LLM-powered pipeline that automates the extraction and integration of dark matter constraints from arXiv papers into community repositories, achieving high accuracy in coupling classification and curve reconstruction while highlighting the unresolved challenges of governing AI-generated scientific data.
This paper presents analytic next-to-next-to-leading-order QCD corrections for heavy-quark production in charged-current deep-inelastic scattering with exact charm mass dependence, expressing two-heavy-quark contributions via Goncharov polylogarithms and three-heavy-quark contributions via elliptic structures and rapidly convergent expansions for efficient numerical evaluation.
This paper investigates the feasibility of observing single hyperon production via lepton-nucleon deep inelastic scattering at colliders by calculating cross sections with various theoretical form factors, ultimately highlighting significant experimental challenges and theoretical uncertainties while suggesting that anomalous observations could signal new physics.
This paper reviews key challenges in Monte Carlo event generator development, such as electroweak corrections, initial-state radiation, and non-perturbative modelling, which are critical for meeting the heightened accuracy demands of future high-precision lepton colliders.