Description
An annual survey of the hep-ex arXiv category, covering research published from September 2025 – August 2026. Built on a close-reading set of 132 papers and organised into 37 chapters, it maps the year by the field's research sub-directions.
Book framework (share of the year's output):
- Lepton Flavor Violation and Rare Decays (15.1%) — Investigates rare lepton decays, CP violation, and lepton flavor violation signals in B-factories and precision experiments.
- Heavy-Ion QCD and Jet Quenching (13.1%) — Explores quark-gluon plasma properties, jet quenching, and heavy-flavor production in heavy-ion collisions.
- Detector Instrumentation and Performance (11.3%) — Focuses on the design, characterization, and performance optimization of particle detectors and readout systems.
- Higgs Boson Precision Measurements (11.2%) — Analyzes Higgs boson production, decay modes, and associated processes at the LHC and future colliders.
- Machine Learning in Particle Physics (10.3%) — Applies machine learning techniques for data quality monitoring, simulation, and new physics searches.
- Neutrino Oscillation and Interaction Studies (10.1%) — Studies neutrino oscillations, mass hierarchies, and interaction cross-sections using large-scale detectors.
- Dark Matter and Axion Searches (7.4%) — Conducts direct and indirect searches for dark matter, axions, and light dark sector particles.
- Proton-Proton Collisions at LHC (7.2%) — Examines standard model processes and BSM searches in high-energy proton-proton collisions at the LHC.
- High-Energy Physics and Energy Correlators (6.2%) — Utilizes energy correlators and high-resolution spectroscopy to probe high-energy physics phenomena.
- Hadron Spectroscopy and CP Violation (4.2%) — Analyzes hadron resonances, decay amplitudes, and CP asymmetries in meson and baryon systems.
- Experimental Design and Facility Proposals (3.9%) — Details the design, prototyping, and initial results of new experimental facilities and upgrades.
Each sub-direction is covered across three chapters — how it framed its questions, the strength of its key findings, and its open debates and frontiers — so the reader gets a traceable picture of what this part of the field actually produced over the year.