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, A. M. Bakich, E. Barberio, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, J. Brodzicka, T. E. Browder, P. Chang, A. ChenK. 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. Gorišek, 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

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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)=[8.9±1. 7(stat)±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. 43±0.11(stat)-0.02+0.05(syst).

Original languageEnglish
Article number141801
JournalPhysical Review Letters
Volume95
Issue number14
DOIs
Publication statusPublished - 2005 Sep 30

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Zhang, J., Abe, K., Adachi, I., Aihara, H., Arinstein, K., Asano, Y., Aushev, T., Aziz, T., Bahinipati, S., Bakich, A. M., Barberio, E., Bitenc, U., Bizjak, I., Blyth, S., Bondar, A., Bozek, A., Brodzicka, J., Browder, T. E., Chang, P., ... Olsen, S. L. (2005). Measurements of the branching fraction and polarization in B+â†Ï+K*0 decays. Physical Review Letters, 95(14), [141801]. https://doi.org/10.1103/PhysRevLett.95.141801