2610 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 and analytically describes the "resonant cancellation" effect, where an additional oscillating magnetic field aligned with the static main field causes the modulation of Larmor precession to vanish when the particle interaction time matches the oscillation period, a phenomenon experimentally verified using a monochromatic cold neutron beam.
The paper proposes a novel nuclear interferometer utilizing the thorium-229 clock transition to detect ultra-light dark matter, offering enhanced sensitivity to variations in fundamental constants and the QCD sector that could complement and surpass existing terrestrial clock experiments.
This paper presents a data-driven multilateration method that utilizes the arrival times of the first inverse beta decay neutrino events across multiple detectors, combined with a reference lightcurve from a larger detector, to rapidly estimate the direction and generate probability skymaps for Galactic core-collapse supernovae without relying on simulations.
This paper investigates the mass spectra and strong and radiative decay properties of high-lying and charmonium states around 4 GeV, incorporating unquenched effects to provide theoretical predictions that guide future experimental searches at facilities like BESIII, Belle II, LHCb, and STCF.
Using 138 fb of proton-proton collision data at 13 TeV, the CMS experiment performed a search for nonresonant new physics in high-mass dilepton events associated with b-tagged jets, finding no significant deviations from the Standard Model and setting lower limits on the energy scale of effective field theory operators involving four-fermion contact interactions.
Using 2024 LHCb Run 3 proton-proton collision data, this paper reports the most precise single-experiment measurement of the time-integrated asymmetry in decays to date, yielding a value of .
This paper provides a conceptual and practical introduction to Strong-Field Quantum Electrodynamics tailored for experimentalists, focusing on core ideas, terminology, and challenges relevant to experimental design and interpretation rather than offering a comprehensive theoretical review.
A high-sensitivity search for neutron-to-mirror-neutron oscillations conducted at the PSI UCN source found no evidence of anomalous neutron losses, thereby excluding 99.98% of the previously claimed parameter space and establishing new limits on the oscillation time constant.
This paper derives the one-point energy correlator for deep inelastic scattering in the small- limit using the Color Glass Condensate framework, demonstrating that it serves as a clean, nonperturbative-free probe of gluon saturation dynamics with significant nuclear suppression effects relevant to the future Electron-Ion Collider.
This paper employs an open quantum systems framework to demonstrate that an ultralight scalar field coupled to neutrinos induces decoherence in neutrino oscillations with a damping parameter scaling as , differing from the dependence typically assumed in phenomenological models.