Study of τ−→KSπ−ντ decay with Belle
✍ Scribed by D.A. Epifanov
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 428 KB
- Volume
- 162
- Category
- Article
- ISSN
- 0920-5632
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✦ Synopsis
We present a study of τ -→ KSπ -ντ decay using a data sample corresponding to the integrated luminosity of 351fb -1 collected by the Belle detector. Analysis is based on 55017 lepton tagged signal events. The measured branching ratio Br(τ → KSπντ ) = (0.391 ± 0.004stat ± 0.014syst)% is consistent with the PDG value and has much better accuracy. The invariant mass spectrum of KSπ was analyzed. This spectrum is not saturated with the K (892) contribution only, so that other mechanisms are considered.
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