1429 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 an improved perturbative QCD study at leading order that calculates the branching ratios and relative ratios for decays (where represents various light mesons), finding results consistent with existing predictions and highlighting distinctive patterns for scalar meson modes to facilitate future experimental tests at the Large Hadron Collider.
The GlueX experiment at Jefferson Lab reports the first observations of and photoproduction alongside production, revealing forward-peaked angular distributions consistent with Regge-like -channel exchanges and a phenomenological double-exchange model, while finding no narrow resonant structures and observing a suppression of pairs similar to other reactions.
This paper extends a newly introduced framework for single-diffractive hard exclusive processes to the specific case of exclusive real-photon electroproduction, offering a more systematic and transparent approach for extracting generalized parton distributions (GPDs) from experimental data.
The CANTON- proposal outlines a next-generation muon experiment at China's HIAF designed to surpass Fermilab's precision by leveraging intense pulsed muon beams to achieve sub-0.1 ppm accuracy, thereby enabling stringent tests of the Standard Model and significantly improved constraints on CPT symmetry.
This paper proposes a hybrid nuclear-electronic spin sensor utilizing hyperfine interactions in silicon donors to overcome the low-frequency sensitivity limits of conventional nuclear magnetic resonance, thereby enabling compact solid-state detection of galactic axions with projected sensitivity exceeding direct nuclear methods by an order of magnitude.
This paper resolves the wide dispersion in reported charge-carrier mobility data for diamond by attributing it to experimental and modeling variables, then benchmarks and recommends specific parameterizations for electrons and holes to improve the accuracy of detector simulations.
This paper presents the design and experimental characterization of the POKERINO prototype, a PbWO-based electromagnetic calorimeter utilizing SiPM sensors, to validate its performance and energy resolution capabilities for the NA64 experiment's search for light dark matter.
This paper reviews recent developments in chiral dynamics to explain how the strong attractive interaction of the kaon with nucleons and heavy-light mesons leads to the formation of hadronic molecules like the and , while predicting the existence of three-body hadronic molecules such as .
Using a data sample of 6.4 fb collected by the BESIII detector, this paper reports the first observation of the singly Cabibbo-suppressed decay with a statistical significance of 5.9 and provides the first evidence for the decay with a significance of 3.7.
This study demonstrates that an X-ray free-electron laser Compton collider operating at GeV could probe the Higgs self-coupling with a precision of 7% to 12% in the channel by employing boosted decision trees and genetic algorithm optimization, establishing it as a powerful complementary tool to future and hadron colliders for investigating electroweak symmetry breaking.