This is the 1999 ARCHIVED edition of the Review of Particle Physics. It is for historical purposes only. Please use the most current data.

Summary Tables and Conservation Laws
Reviews, Tables, Plots (including major Reviews from the Particle Listings)
Particle Listings and all associated Reviews

Errata (last changed January 18, 2000)
Authors for the 1998 edition.
Please use this CITATION: C. Caso et al. (Particle Data Group), The European Physical Journal C3 (1998) 1 and 1999 off-year partial update for the 2000 edition available on the PDG WWW pages (URL: http://pdg.lbl.gov/)

Notice to Users