Measurement of the branching fractions of the rare decays B{sup 0}{yields}D{sub s}{sup (*)+}{pi}{sup -}, B{sup 0}{yields}D{sub s}{sup (*)+}{rho}{sup -}, and B{sup 0}{yields}D{sub s}{sup (*)-}K{sup (*)+}

Journal Article · Fri Aug 01 00:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.032005· OSTI ID:21250579

Aubert, B; Bona, M; Karyotakis, Y; Lees, J P; Poireau, V; Prencipe, E; Prudent, X; Tisserand, V ^[1]; Tico, J Garra; Grauges, E ^[2]; Lopez, L; Palano, A; Pappagallo, M ^[3]; Eigen, G; Stugu, B; Sun, L ^[4]; Abrams, G S; Battaglia, M; Brown, D N; Button-Shafer, J ^[5]

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1. Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
2. Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
3. Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
4. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
5. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)

We report the measurement of the branching fractions of the rare decays B{sup 0}{yields}D{sub s}{sup (*)+}{pi}{sup -}, B{sup 0}{yields}D{sub s}{sup (*)+}{rho}{sup -}, and B{sup 0}{yields}D{sub s}{sup (*)-}K{sup (*)+} in a sample of 381x10{sup 6}{upsilon}(4S) decays into BB pairs collected with the BABAR detector at the PEP-II asymmetric-energy e{sup +}e{sup -} storage ring. We present evidence for the decay B{sup 0}{yields}D{sub s}{sup -}K*{sup +} and the vector-vector decays B{sup 0}{yields}D{sub s}*{sup +}{rho}{sup -} and B{sup 0}{yields}D{sub s}*{sup -}K*{sup +}, as well as the first measurement of the vector meson polarization in these decays. We also determine the ratios of the CKM-suppressed to CKM-favored amplitudes r(D{sup (*)}{pi}) and r(D{sup (*)}{rho}) in decays B{sup 0}{yields}D{sup (*){+-}}{pi}{sup {+-}} and B{sup 0}{yields}D{sup (*){+-}}{rho}{sup {+-}}, and comment on the prospects for measuring the CP observable sin(2{beta}+{gamma})

• OSTI ID: 21250579
• Journal Information: Physical Review. D, Particles Fields, Vol. 78, Issue 3; Other Information: DOI: 10.1103/PhysRevD.78.032005; (c) 2008 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
AMPLITUDES
B NEUTRAL MESONS
BRANCHING RATIO
D S MESONS
ELECTRONS
KAONS PLUS
PARTICLE DECAY
PIONS MINUS
POLARIZATION
POSITRONS
STORAGE RINGS
VECTOR MESONS