Search for rare quark-annihilation decays, B{sup -}{yields}D{sub s}{sup (*)-}{phi}
Journal Article
·
· Physical Review. D, Particles Fields
- Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux (France)
- IFAE, Universitat Autonoma de Barcelona, E-08193 Bellaterra, Barcelona (Spain)
- Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
- Institute of High Energy Physics, Beijing 100039 (China)
- University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
We report on searches for B{sup -}{yields}D{sub s}{sup -}{phi} and B{sup -}{yields}D{sub s}*{sup -}{phi}. In the context of the standard model, these decays are expected to be highly suppressed since they proceed through annihilation of the b and u quarks in the B{sup -} meson. Our results are based on 234x10{sup 6} {upsilon}(4S){yields}BB 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{sup -}{yields}D{sub s}{sup -}{phi})<1.9x10{sup -6} and B(B{sup -}{yields}D{sub s}*{sup -}{phi})<1.2x10{sup -5}. These results are consistent with standard model expectations.
- OSTI ID:
- 20774565
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 73, Issue 1; Other Information: DOI: 10.1103/PhysRevD.73.011103; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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