Measurements of the branching fraction and polarization in B â†Ï K*0 decays

J Zhang; K Abe; I Adachi; H Aihara; K Arinstein; Y Asano; T Aushev; T Aziz; S Bahinipati; AM Bakich; E Barberio; U Bitenc; I Bizjak; S Blyth; A Bondar; A Bozek; J Brodzicka; TE Browder; P Chang; A Chen; KF Chen; WT Chen; BG Cheon; R Chistov; SK Choi; Y Choi; YK Choi; A Chuvikov; S Cole; J Dalseno; M Danilov; M Dash; J Dragic; S Eidelman; F Fang; S Fratina; N Gabyshev; T Gershon; G Gokhroo; B Golob; A Gorišek; T Hara; M Hazumi; L Hinz; T Hokuue; Y Hoshi; S Hou; WS Hou; T Iijima; A Imoto; A Ishikawa; H Ishino; R Itoh; M Iwasaki; JH Kang; JS Kang; SU Kataoka; H Kawai; T Kawasaki; HR Khan; H Kichimi; HJ Kim; SK Kim; SM Kim; K Kinoshita; S Korpar; P Krokovny; CC Kuo; YJ Kwon; G Leder; T Lesiak; J Li; A Limosani; SW Lin; J MacNaughton; F Mandl; T Matsumoto; A Matyja; Y Mikami; W Mitaroff; K Miyabayashi; H Miyake; H Miyata; R Mizuk; GR Moloney; T Nagamine; Y Nagasaka; E Nakano; M Nakao; H Nakazawa; Z Natkaniec; S Nishida; O Nitoh; T Nozaki; S Ogawa; T Ohshima; T Okabe; S Okuno; SL Olsen

Journal article

Measurements of the branching fraction and polarization in B â†Ï K*0 decays

J Zhang, K Abe, I Adachi, H Aihara, K Arinstein, Y Asano, T Aushev, T Aziz, S Bahinipati, AM Bakich, E Barberio, U Bitenc, I Bizjak, S Blyth, A Bondar, A Bozek, J Brodzicka, TE Browder, P Chang, A Chen Show all

Physical Review Letters | AMER PHYSICAL SOC | Published : 2005

DOI: 10.1103/PhysRevLett.95.141801

Abstract

We present the results of a study of the charmless vector-vector decay B+â†'Ï+K*0, based on 253fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. We obtain the branching fraction B(B+â†'Ï+K*0)=[8.9Â±1. 7(stat)Â±1.2(syst)]Ã-10-6. We also perform a helicity analysis of the Ï and K* vector mesons, and obtain the longitudinal polarization fraction fL(B+â†'Ï+K*0)=0. 43Â±0.11(stat)-0.02+0.05(syst). © 2005 The American Physical Society.