Measurements of the branching fraction and polarization in B+ --> rho+ K*0 decays

J Zhang; K Abe; I Adachi; H Aihara; K Arinstein; Y Asano; T Aushev; T Aziz; S Bahinipati; A M Bakich; E Barberio; U Bitenc; I Bizjak; S Blyth; A Bondar; A Bozek; J Brodzicka; T E Browder; P Chang; A Chen; K-F Chen; W T Chen; B G Cheon; R Chistov; S-K Choi; Y Choi; Y K 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 Gorisek; T Hara; M Hazumi; L Hinz; T Hokuue; Y Hoshi; S Hou; W-S Hou; T Iijima; A Imoto; A Ishikawa; H Ishino; R Itoh; M Iwasaki; J H Kang; J S Kang; S U Kataoka; H Kawai; T Kawasaki; H R Khan; H Kichimi; H J Kim; S K Kim; S M Kim; K Kinoshita; S Korpar; P Krokovny; C C Kuo; Y-J Kwon; G Leder; T Lesiak; J Li; A Limosani; S-W Lin; J MacNaughton; F Mandl; T Matsumoto; A Matyja; Y Mikami; W Mitaroff; K Miyabayashi; H Miyake; H Miyata; R Mizuk; G R 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; S L Olsen; Y Onuki; W Ostrowicz; H Ozaki; C W Park; L S Peak; R Pestotnik; L E Piilonen; H Sagawa; Y Sakai; T R Sarangi; T Schietinger; O Schneider; A J Schwartz; M E Sevior; H Shibuya; A Somov; R Stamen; S Stanic; M Staric; T Sumiyoshi; S Suzuki; O Tajima; F Takasaki; M Tanaka; Y Teramoto; X C Tian; T Tsuboyama; T Tsukamoto; S Uehara; T Uglov; K Ueno; S Uno; P Urquijo; G Varner; K E Varvell; S Villa; C C Wang; C H Wang; M-Z Wang; Y Watanabe; Q L Xie; B D Yabsley; A Yamaguchi; Y Yamashita; Heyoung Yang; J Ying; L M Zhang; Z P Zhang; D Zontar; Belle Collaboration

doi:10.1103/PhysRevLett.95.141801

Measurements of the branching fraction and polarization in B+ --> rho+ K*0 decays

Phys Rev Lett. 2005 Sep 30;95(14):141801. doi: 10.1103/PhysRevLett.95.141801. Epub 2005 Sep 28.

Authors

J Zhang¹, K Abe, I Adachi, H Aihara, K Arinstein, Y Asano, T Aushev, T Aziz, S Bahinipati, A M Bakich, E Barberio, U Bitenc, I Bizjak, S Blyth, A Bondar, A Bozek, J Brodzicka, T E Browder, P Chang, A Chen, K-F Chen, W T Chen, B G Cheon, R Chistov, S-K Choi, Y Choi, Y K 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 Gorisek, T Hara, M Hazumi, L Hinz, T Hokuue, Y Hoshi, S Hou, W-S Hou, T Iijima, A Imoto, A Ishikawa, H Ishino, R Itoh, M Iwasaki, J H Kang, J S Kang, S U Kataoka, H Kawai, T Kawasaki, H R Khan, H Kichimi, H J Kim, S K Kim, S M Kim, K Kinoshita, S Korpar, P Krokovny, C C Kuo, Y-J Kwon, G Leder, T Lesiak, J Li, A Limosani, S-W Lin, J MacNaughton, F Mandl, T Matsumoto, A Matyja, Y Mikami, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, R Mizuk, G R 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, S L Olsen, Y Onuki, W Ostrowicz, H Ozaki, C W Park, L S Peak, R Pestotnik, L E Piilonen, H Sagawa, Y Sakai, T R Sarangi, T Schietinger, O Schneider, A J Schwartz, M E Sevior, H Shibuya, A Somov, R Stamen, S Stanic, M Staric, T Sumiyoshi, S Suzuki, O Tajima, F Takasaki, M Tanaka, Y Teramoto, X C Tian, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, K Ueno, S Uno, P Urquijo, G Varner, K E Varvell, S Villa, C C Wang, C H Wang, M-Z Wang, Y Watanabe, Q L Xie, B D Yabsley, A Yamaguchi, Y Yamashita, Heyoung Yang, J Ying, L M Zhang, Z P Zhang, D Zontar; Belle Collaboration

Affiliation

¹ High Energy Accelerator Research Organization (KEK), Tsukuba.

PMID: 16241643
DOI: 10.1103/PhysRevLett.95.141801

Abstract

We present the results of a study of the charmless vector-vector decay B+ --> rho+ K*0, based on 253 fb(-1) of data collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. We obtain the branching fraction B(B+ --> rho+ K*0) = [8.9 +/- 1.7(stat) +/- 1.2(syst)] x 10(-6). We also perform a helicity analysis of the rho and K* vector mesons, and obtain the longitudinal polarization fraction f(L)(B+ --> rho+ K*0) = 0.43 +/- 0.11(stat)(-0.02)(+0.05) (syst).