Search for rare quark-annihilation decays, B{sup -}{yields}D{sub s}{sup (*)-}{phi}

Journal Article · Sun Jan 01 00:00:00 EST 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.73.011103· OSTI ID:20774565

Aubert, B; Barate, R; Boutigny, D; Couderc, F; Karyotakis, Y; Lees, J P; Poireau, V; Tisserand, V; Zghiche, A ^[1]; Grauges, E ^[2]; Palano, A; Pappagallo, M; Pompili, A ^[3]; Chen, J C; Qi, N D; Rong, G; Wang, P; Zhu, Y S ^[4]; Eigen, G; Ofte, I ^[5]

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1. Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux (France)
2. IFAE, Universitat Autonoma de Barcelona, E-08193 Bellaterra, Barcelona (Spain)
3. Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
4. Institute of High Energy Physics, Beijing 100039 (China)
5. 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

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
B MINUS MESONS
B QUARKS
BRANCHING RATIO
D S MESONS
HADRONIC PARTICLE DECAY
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
PEP STORAGE RINGS
PHI-1020 MESONS
PHI-1680 MESONS
STANDARD MODEL
U QUARKS