1387 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 investigates how present and future muon beam dump experiments can probe the five-dimensional nature of interactions by leveraging the enhanced signals from multiple Kaluza-Klein gauge bosons and their distinct decay channels to provide direct evidence for extra dimensions while constraining parameters via the muon anomaly.
This paper demonstrates that dark matter-baryon interactions, specifically those mediated by an ultralight particle, can mimic the suppression in the CMB lensing power spectrum caused by massive neutrinos, thereby potentially compromising future neutrino mass measurements from next-generation CMB experiments.
The KOTO experiment conducted a search for invisible dark particles () in the decay using 13 candidate events, finding no evidence for such particles and setting new upper limits on the branching ratio for masses between 0 and 425 MeV/.
This paper investigates the sensitivity of the beam normal spin asymmetry in Bhabha scattering to beyond-the-Standard-Model mediators within the JLab polarized positron program, highlighting how the observable's unique zero crossing in the Standard Model provides a clean, background-free opportunity to significantly extend search ranges for scalar and vector new physics scenarios.
This paper proposes a minimal extension of the Leptogenesis framework that links the generation of the baryon asymmetry and asymmetric dark matter through heavy Majorana neutrino decays, offering a testable TeV-scale mechanism that connects neutrino masses to observable direct detection signals.
This paper introduces the Lund Plane to Bloch (LP2B) encoding and a corresponding Quantum Tree-Topology Network (QTTN) that maps robust jet kinematics to qubit states, achieving competitive performance in object and polarization tagging with significantly fewer parameters and reduced systematic uncertainties compared to classical deep learning models, while also being validated on real quantum hardware.
This study utilizes PYTHIA simulations of proton-proton collisions at 14 TeV to demonstrate that including inverse Compton scattering events in quark-gluon scattering analyses results in a moderate, constant increase in particle yield without significantly broadening transverse momentum spectra, thereby validating pp collisions as a reliable baseline for investigating energy redistribution in dense QCD media.
This paper proposes the concept, a novel detector design for the 100 TeV Future Circular Collider that replaces inner tracking with a multi-layered composite shield to suppress Standard Model backgrounds by up to seven orders of magnitude, thereby enabling unprecedented sensitivity to long-lived particles with branching ratios as low as .
This paper introduces SHARP, a structured human-agent collaboration framework that treats scientific reproduction as a translation task, enabling researchers to guide AI agents in autonomously generating and testing analysis code while maintaining human oversight of scientific judgment.
This paper employs a nonrelativistic quark-diquark model to predict the mass spectra, magnetic moments, and Regge trajectories of the triply heavy and baryons, establishing a consistent link to experimental meson data and providing reliable theoretical benchmarks for future searches at LHCb.