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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. 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. 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
  • High Energy Accelerator Research Organization, Tsukuba
  • The University of Tokyo
  • RAS - Budker Institute of Nuclear Physics
  • University of Tsukuba
  • Alikhanov Institute for Theoretical and Experimental Physics
  • Tata Institute of Fundamental Research
  • University of Cincinnati
  • The University of Sydney
  • University of Melbourne
  • Jožef Stefan Institute
  • National Taiwan University
  • H. Niewodniczanski Institute of Nuclear Physics
  • University of Hawai'i at Mānoa
  • National Central University
  • Chonnam National University
  • Gyeongsang National University
  • Sungkyunkwan University
  • Princeton University
  • Virginia Polytechnic Institute and State University
  • University of Ljubljana
  • The University of Osaka
  • Swiss Federal Institute of Technology Lausanne
  • Nagoya University
  • Tohoku Gakuin University
  • Nara Women's University
  • Institute of Science Tokyo
  • Yonsei University
  • Korea University
  • Chiba University
  • Niigata University
  • Seoul National University
  • University of Maribor
  • Austrian Academy of Sciences
  • University of Science and Technology of China
  • Tokyo Metropolitan University
  • Tohoku University
  • Hiroshima Institute of Technology
  • Osaka Metropolitan University
  • Tokyo University of Agriculture and Technology
  • Toho University
  • Kanagawa University

Research output: Contribution to journalArticlepeer-review

63 Scopus citations

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
StatePublished - 30 Sep 2005

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