Search for $B^- \to D_s^{(*)-} \Phi$

Abstract : We report on searches for B- --> Ds- Phi and B- --> Ds*- Phi. In the context of the Standard Model, the branching fractions for these decays are expected to be highly suppressed, since they proceed through annhilation of the b and u-bar quarks in the B- meson. Our results are based on 234 million Upsilon(4S) --> B Bbar decays collected with the BaBar detector at SLAC. We find no evidence for these decays, and we set 90% confidence level upper limits on the branching fractions BF(B- --> Ds- Phi) < 1.8x10^(-6) BF(B- --> Ds*- Phi) < 1.1x10^(-5). These results are consistent with Standard Model expectations.
Document type :
Conference papers

http://hal.in2p3.fr/in2p3-00025130
Contributor : Dominique Girod <>
Submitted on : Friday, November 25, 2005 - 3:09:43 PM
Last modification on : Sunday, June 20, 2021 - 3:35:07 AM

Citation

B. Aubert, R. Barate, D. Boutigny, F. Couderc, Y. Karyotakis, et al.. Search for $B^- \to D_s^{(*)-} \Phi$. XXIIst International Symposium on Lepton and Photon Interactions at High Energies, Jun 2005, Uppsala, Sweden. pp.1-15. ⟨in2p3-00025130⟩

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