- Blocker, CA
- Dorfan, JM
- Abrams, GS
- Alam, MS
- Blondel, A
- Boyarski, AM
- Breidenbach, M
- Burke, DL
- Carithers, WC
- Chinowsky, W
- Coles, MW
- Cooper, S
- Dieterle, WE
- Dillon, JB
- Dorenbosch, J
- Eaton, MW
- Feldman, GJ
- Franklin, MEB
- Gidal, G
- Goldhaber, G
- Hanson, G
- Hayes, KG
- Himel, T
- Hitlin, DG
- Hollebeek, RJ
- Innes, WR
- Jaros, JA
- Jenni, P
- Johnson, AD
- Kadyk, JA
- Lankford, AJ
- Larsen, RR
- Levi, M
- Lüth, V
- Millikan, RE
- Nelson, ME
- Pang, CY
- Patrick, JF
- Perl, ML
- Richter, B
- Roussarie, A
- Scharre, DL
- Schindler, RH
- Schwitters, RF
- Siegrist, JL
- Strait, J
- Taureg, H
- Tonutti, M
- Trilling, GH
- Vella, EN
- Vidal, RA
- Videau, I
- Weiss, JM
- Zaccone, H
- et al.
We present a high statistics measurement of the branching ratio for the decay τ-→π-μτ using data obtained with the Mark II detector at the SLAC e+e- storage ring SPEAR. We have used events from the center-of-mass energy region 3.52 to 6.7 GeV to determine that B(τ-→π-μτ)=0.117±0.004±0.018. From electron-muon events in the same data sample, we have determined that B(τ-→π-μτ) B(τ-→e--μeμτ)=0.66±0.03±0.11. We present measurements of the mass and spin of the τ and the mass of the τ neutrino based, for the first time, on a hadronic decay mode of the τ. © 1982.