Tau Decays Involving Neutral Kaons at OPAL
Abstract
We describe preliminary measurements for the following branching ratios, derived from 100092 tau pairs collected between 1990 to 1994 at the OPAL detector at LEP: BR( τ- → νK 0π-) = 1.04 ± 0.13 ± 0.09% BR( τ- → νK 0π- ≥ 1 π0) = 0.48 ± 0.12 ± 0.07% BR( τ- → νK 0K -) = 0.10 ± 0.07 ± 0.02% BR( τ- → νK 0K - ≥ 1 π0) = 0.18 ± 0.09 ± 0.03% where the first error is statistical, and the second is systematic.
We also describe the preliminary measurement for the τ- → νK S0K S0π- branching ratio, derived from 114110 tau pairs collected between 1990 to 1995: BR( τ- → νK S0K S0π-) = 0.054 ± 0.030 ± 0.015% where again the first error is statistical and the second is systematic.- Publication:
-
Nuclear Physics B Proceedings Supplements
- Pub Date:
- May 1997
- DOI:
- 10.1016/S0920-5632(97)00209-0
- Bibcode:
- 1997NuPhS..55..137T