Measurements of the Branching Fraction and Polarization in B{sup +}{yields}{rho}{sup +}K{sup *0} Decays

Journal Article · Fri Sep 30 04:00:00 EDT 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.95.141801· OSTI ID:20696514

Zhang, J; Abe, K; Adachi, I; Dragic, J; Gershon, T; Hazumi, M; Ishikawa, A; Itoh, R; Kichimi, H; Limosani, A; Nakao, M; Nakazawa, H; Nishida, S; Nozaki, T; Ozaki, H; Sagawa, H; Sakai, Y; Sarangi, T R; Stamen, R; Tajima, O ^[1]

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1. High Energy Accelerator Research Organization (KEK), Tsukuba (Japan); and others

We present the results of a study of the charmless vector-vector decay B{sup +}{yields}{rho}{sup +}K{sup *0}, based on 253 fb{sup -1} of data collected with the Belle detector at the KEKB asymmetric-energy e{sup +}e{sup -} collider. We obtain the branching fraction B(B{sup +}{yields}{rho}{sup +}K*{sup 0})=[8.9{+-}1.7(stat){+-}1.2(syst)]x10{sup -6}. We also perform a helicity analysis of the {rho} and K* vector mesons, and obtain the longitudinal polarization fraction f{sub L}(B{sup +}{yields}{rho}{sup +}K*{sup 0})=0.43{+-}0.11(stat){sub -0.02}{sup +0.05}(syst)

• OSTI ID: 20696514
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 14 Vol. 95; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B PLUS MESONS
BRANCHING RATIO
HADRONIC PARTICLE DECAY
HELICITY
KAONS NEUTRAL
POLARIZATION
VECTOR MESONS