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Observation of the exclusive decayB→evD* and search forB→evπ0
- Source :
- Zeitschrift für Physik C Particles and Fields; December 1990, Vol. 48 Issue: 4 p553-559, 7p
- Publication Year :
- 1990
-
Abstract
- The Crystal Ball detector at thee<superscript>+</superscript>e<superscript>−</superscript> storage ring DORIS II has been used to analyze exclusive semileptonic decays ofB mesons produced at γ(4S) energies. The decayB→evD<superscript>*</superscript> has been observed with a branching ratio of (7.0±1.8±1.4)% using theπ°D decay mode of theD<superscript>*</superscript>. In addition we have searched for the exclusive semileptonic decayB<superscript>±</superscript>→e<superscript>±</superscript>vπ<superscript>0</superscript>. We find an upper limit onB<superscript>±</superscript>→e<superscript>±</superscript>vπ<superscript>0</superscript> of 0.22% at the 90% CL.
Details
- Language :
- English
- ISSN :
- 01709739 and 14315858
- Volume :
- 48
- Issue :
- 4
- Database :
- Supplemental Index
- Journal :
- Zeitschrift für Physik C Particles and Fields
- Publication Type :
- Periodical
- Accession number :
- ejs15750052
- Full Text :
- https://doi.org/10.1007/BF01614688