2008年11月7日
New measurement of the K+→π+νν̄ branching ratio
Physical Review Letters
- 巻
- 101
- 号
- 19
- DOI
- 10.1103/PhysRevLett.101.191802
Three events for the decay K+→π+νν̄ have been observed in the pion momentum region below the K+→π+π0 peak, 140<Pπ<199MeV/c, with an estimated background of 0.93±0.17(stat. )-0.24+0.32(syst.) events. Combining this observation with previously reported results yields a branching ratio of B(K+→π+νν̄)=(1.73-1.05+1. 15)×10-10 consistent with the standard model prediction. © 2008 The American Physical Society.
- リンク情報
- ID情報
-
- DOI : 10.1103/PhysRevLett.101.191802
- ISSN : 0031-9007
- eISSN : 1079-7114
- SCOPUS ID : 56249113781