Measurement of the branching fractions for B → ωK and B → ωπ

C. H. Wang, K. Abe, K. Abe, N. Abe, T. Abe, I. Adachi, H. Aihara, M. Akatsu, T. Aso, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, Y. Ban, S. Banerjee, S. Blyth, A. Bondar, A. Bozek, M. Bračko, T. E. BrowderY. Chao, K. F. Chen, B. G. Cheon, R. Chistov, S. K. Choi, Y. Choi, A. Chuvikov, S. Cole, M. Danilov, L. Y. Dong, S. Eidelman, V. Eiges, T. Gershon, B. Golob, J. Haba, N. C. Hastings, H. Hayashii, M. Hazumi, L. Hinz, T. Hokuue, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. C. Huang, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, H. Iwasaki, M. Iwasaki, J. H. Kang, J. S. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, J. H. Kim, S. K. Kim, P. Koppenburg, S. Korpar, P. Križan, P. Krokovny, Y. J. Kwon, G. Leder, S. H. Lee, T. Lesiak, J. Li, A. Limosani, S. W. Lin, D. Liventsev, J. MacNaughton, G. Majumder, F. Mandl, T. Matsumoto, W. Mitaroff, K. Miyabayashi, H. Miyata, D. Mohapatra, G. R. Moloney, T. Mori, T. Nagamine, Y. Nagasaka, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, H. Palka, C. W. Park, H. Park

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6 Citations (Scopus)


We report improved measurements of branching fractions for charmless hadronic two-body B meson decays containing an ω meson in the final state. The results are based on a data sample of 78 fb -1 collected on the Y(4S) resonance by the Belle detector. We measure the branching fractions B(B + → ωK +)=(6.5 -1.2 +1.3±0.6) × 10 -6 and B(B +→ωπ +=(5.7 -1.3 +1.4±0.6)×10 -6. We give 90% confidence upper limits for B(B 0→ωK 0) ≤7.6×10 -6 and B(B 0→ωπ 0)<1. 9×10 -6. We also obtain the partial rate asymmetries A CP=0.06 -0.18 +0.21 ±0.01 for B ±→ωK ± and A CP=0. 50 -0.20 +0.23±0.02 for B ±→ωπ ±.

Original languageEnglish
Article number012001
Pages (from-to)012001-1-012001-6
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number1
Publication statusPublished - 2004 Jul

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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