Michel parameters averages and interpretation

✍ Scribed by A. Stahl

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 695 KB
• Volume: 76
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/s0920-5632(99)00454-5

✦ Synopsis

The new measurements of Michel parameters in 7" decays are combined to world averages. From these measurements model independent limits on non-standard model couplings are derived and interpretations in the framework of specific models are given. A lower limit of 2.5 tan 3 GeV on the mass of a charged Higgs boson in models with two Higgs doublets can be set and a 229 GeV limit on a right-handed W-boson in left-right symmetric models (95 % c.l.).