2523 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 employs the Born--Oppenheimer effective field theory to analyze hidden-charm pentaquarks discovered by LHCb, identifying them as bound states in specific potentials, predicting their spin assignments and decay patterns, and providing the first theoretical estimates for adjoint baryon masses to be verified by future lattice QCD studies.
This paper presents a novel lead-glass calorimeter that utilizes beam dump leakage to measure high-energy electron and photon flux with approximately 10% precision, few-percent accuracy, and micrometer-level position resolution, as demonstrated by a prototype at the DESY FLASHForward experiment.
This paper employs the QCD sum rule method to calculate the form factors and decay widths for the semileptonic weak transition , providing theoretical benchmarks for future experimental studies of excited heavy baryon dynamics.
This paper presents and evaluates machine-learning-based anomaly detection methods for model-independent searches for new physics in dijet final states using 13 TeV proton-proton collision data from the CMS experiment, demonstrating their effectiveness in identifying anomalous jets and boosted top quarks without relying on specific theoretical models.
This paper presents a model-independent search for light charged Higgs bosons (110–165 GeV) produced via rare top decays () followed by the off-shell decay , establishing new constraints on this previously unconstrained channel by reinterpreting ATLAS dileptonic measurements and demonstrating its competitive sensitivity in specific two-Higgs-doublet scenarios near the top-quark mass threshold.
This paper presents a precision analysis of semileptonic and non-leptonic meson decays into P-wave charmonium states, utilizing NRQCD-based form factors constrained by experimental radiative decay data to provide updated predictions for branching fractions and lepton flavor universality ratios.
This paper presents a methodology using MOSFET test structures to non-destructively characterize p-stop isolation implants in silicon sensors by extracting threshold voltage and reconstructing depth-dependent doping profiles to monitor inter-electrode isolation properties.
This paper presents new high-precision measurements of the proton's spin structure function at low momentum transfer from the Jefferson Lab E08-027 experiment, utilizing longitudinally polarized data to complement previously published transverse results and provide updated insights into proton spin sum rules and moments.
This paper introduces a multi-agent framework utilizing task decomposition and quantity-grounded semantic differencing to enhance the transparency, reproducibility, and reliability of scientific analyses generated by LLMs by explicitly identifying and resolving ambiguities in user instructions and implementation assumptions.
This paper discusses the separation of energy scales in soft hadron scattering, distinguishing between the scale where total cross-sections begin to rise (governed by absorption features) and the asymptotic scale (dominated by unitarity effects), while establishing a relationship between them through the transition from shadow to reflective scattering.