First observation of the decay B0 → D* + D*-

CLEO Collaboration

研究成果: Article査読

18 被引用数 (Scopus)

抄録

We have observed four fully reconstructed B0 → D* + D*- candidates in 5.8×106 ϒ(4S) → BB decays recorded with the CLEO detector. The background is estimated to be 0.31±0.10 events. The probability that the background could produce four or more signal candidates with the observed distribution among D*+ and D*- decay modes is 1.1 × 10-4. The measured decay rate, B(B0 → D*+D*-) = [6.2+4.0 -2.9(stat) ± 1.0(syst)] × 10-4, is large enough for this decay mode to be of interest for the measurement of a time-dependent CP asymmetry.

本文言語English
ページ(範囲)3020-3024
ページ数5
ジャーナルPhysical review letters
82
15
DOI
出版ステータスPublished - 1999
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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