抄録
Experiment E949 at Brookhaven National Laboratory studied the rare decay K+→π+νν̄ and other processes with an exposure of 1.77×1012 K+'s. The data were analyzed using a blind analysis technique yielding one candidate event with an estimated background of 0.30±0.03 events. Combining this result with the observation of two candidate events by the predecessor experiment E787 gave the branching ratio B(K+→π+νν ̄)=(1.47-0.89+1.30)×10-10, consistent with the standard model prediction of (0.74±0.20)×10-10. This is a more detailed report of results previously published.
本文言語 | 英語 |
---|---|
論文番号 | 052003 |
ジャーナル | Physical Review D - Particles, Fields, Gravitation and Cosmology |
巻 | 77 |
号 | 5 |
DOI | |
出版ステータス | 出版済み - 3月 13 2008 |
外部発表 | はい |
!!!All Science Journal Classification (ASJC) codes
- 核物理学および高エネルギー物理学
- 物理学および天文学(その他)