Search for the Rare Quark-annihilation Decays B->Ds(*)Phi

Journal Article · Mon Dec 19 00:00:00 EST 2005 · Physical Review D-Rapid Communication

DOI:https://doi.org/10.1103/PhysRevD.72.011102· OSTI ID:877460

Aubert, B; Barate, R; Boutigny, D; Couderc, F; Karyotakis, Y; Lees, J P; Poireau, V; Tisserand, V; Zghiche, A; Grauges, E; Palano, A; Pappagallo, M; Pompili, A; Chen, J C; Qi, N D; Rong, G; Wang, P; Zhu, Y S; Eigen, G; Ofte, I ; Stugu, B

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 {bar u} quarks in the B{sup -} meson. Our results are based on 234 million {Upsilon}(4S) {yields} B{bar B} 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 {Beta}(B{sup -} {yields} D{sub s}{sup -}{phi}) < 1.9 x 10{sup -6} and {Beta}(B{sup -} {yields} D*{sub s}{sup -} {phi}) < 1.2 x 10{sup -5}. These results are consistent with Standard Model expectations.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 877460
• Report Number(s): SLAC-PUB-11520; TRN: US0601489
• Journal Information: Physical Review D-Rapid Communication, Journal Name: Physical Review D-Rapid Communication
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ANNIHILATION
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STANDARD MODEL
STANFORD LINEAR ACCELERATOR CENTER
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