Journal article

### Search for rare quark-annihilation decays, B--&gt; D-s((*)-)phi

Abstract:

We report on searches for B-→Ds- and B-→Ds*-. In the context of the standard model, these decays are expected to be highly suppressed since they proceed through annihilation of the b and ū quarks in the B- meson. Our results are based on 234×106 Υ(4S)→BB̄ decays collected with the BABAR detector at SLAC. We find no evidence for these decays, and we set Bayesian 90% confidence level upper limits on the branching fractions B(B-→Ds-)<1.9×10-6 and B(B-→Ds*-)<1. 2×10-5. These results are con...

Publication status:
Published

### Access Document

Publisher copy:
10.1103/PhysRevD.73.011103

### Authors

Journal:
PHYSICAL REVIEW D
Volume:
73
Issue:
1
Publication date:
2006-01-05
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
URN:
Source identifiers:
27612
Local pid:
pubs:27612
Language:
English