The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 2,873
new measurements from 758 papers, we list, evaluate, and average measured properties of gauge bosons and the
recently discovered Higgs boson, leptons, quarks, mesons, and baryons. We summarize searches for hypothetical
particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. Particle properties and search
limits are listed in Summary Tables. We give numerous tables, figures, formulae, and reviews of topics such as Higgs
Boson Physics, Supersymmetry, Grand Unified Theories, Neutrino Mixing, Dark Energy, Dark Matter, Cosmology,
Particle Detectors, Colliders, Probability and Statistics. Among the 118 reviews are many that are new or heavily
revised, including a new review on Neutrinos in Cosmology.
Starting with this edition, the Review is divided into two volumes. Volume 1 includes the Summary Tables
and all review articles. Volume 2 consists of the Particle Listings. Review articles that were previously part of the
Listings are now included in volume 1.
The complete Review (both volumes) is published online on the website of the Particle Data Group
(http://pdg.lbl.gov) and in a journal. Volume 1 is available in print as the PDG Book. A Particle Physics Booklet
with the Summary Tables and essential tables, figures, and equations from selected review articles is also available.