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Measurement of the branching fractions of the rare decays B-0 -> D-s((*)+)pi(-), B-0 -> D-s((*)+)rho(-), and B-0 -> Ds(*)-K(*)+

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BABAR Collaboration (Including:

Aubert, B., Bona, M., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., Prudent, X., Tisserand, V., Tico, J. Garra, Grauges, E. et al.
). (2008) Measurement of the branching fractions of the rare decays B-0 -> D-s((*)+)pi(-), B-0 -> D-s((*)+)rho(-), and B-0 -> Ds(*)-K(*)+. Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol.78 (No.3). article no.032005. ISSN 1550-7998

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Abstract

We report the measurement of the branching fractions of the rare decays B-0 -> D-s((*)+)pi(-), B-0 -> D-s((*)+)rho(-), and B-0 -> Ds(*)-K(*)+ in a sample of 381x10(6)Upsilon(4S) decays into B (B) over bar pairs collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) storage ring. We present evidence for the decay B-0 -> Ds-K*+ and the vector-vector decays B-0 -> D-s(*+)rho(-) and B-0 -> Ds*-K*+, 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-(*)pi) and r(D-(*)rho) in decays B-0 -> D-(*)+/-pi(-/+) and B-0 -> D-(*)+/-rho(-/+), and comment on the prospects for measuring the CP observable sin(2 beta+gamma).

Item Type: Journal Article
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Divisions: Faculty of Science > Physics
Journal or Publication Title: Physical Review D (Particles, Fields, Gravitation and Cosmology)
Publisher: American Physical Society
ISSN: 1550-7998
Date: August 2008
Volume: Vol.78
Number: No.3
Number of Pages: 14
Page Range: article no.032005
Identification Number: 10.1103/PhysRevD.78.032005
Status: Peer Reviewed
Publication Status: Published
URI: http://wrap.warwick.ac.uk/id/eprint/29393

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