Measurement of charmless B decays to eta K-* and eta rho

  • Wang, C. H.
  • Abe, K.
  • Adachi, I.
  • Aihara, H.
  • Anipko, D.
  • ... Cheon, Byung Gu
  • 외 127명
Citations

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21

초록

We report measurements of branching fractions and CP asymmetries for B ->eta K-* and B ->eta rho decays. These results are obtained from a 414 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We measure the following branching fractions: B(B-0 ->eta K-*0)=(15.2 +/- 1.2 +/- 1.0)x10(-6) and B(B+->eta K*+)=(19.3(-1.9)(+2.0)+/- 1.5)x10(-6), where the first error is statistical and the second systematic. We also find a 2.7 sigma excess in the B+->eta rho(+) mode and measure B(B+->eta rho(+))=(4.1(-1.3)(+1.4)+/- 0.4)x10(-6)< 6.5x10(-6) at 90% confidence level. For B-0 ->eta rho(0) decays, we determine the upper limit B(B-0 ->eta rho(0))< 1.9x10(-6) at 90% confidence level. The partial rate asymmetries are A(CP)(eta K-*0)=0.17 +/- 0.08 +/- 0.01, A(CP)(eta K*+)=0.03 +/- 0.10 +/- 0.01, and A(CP)(eta rho(+))=-0.04(-0.32)(+0.34)+/- 0.01.

키워드

LUND MONTE-CARLOJET FRAGMENTATIONMESON DECAYSE+E-PHYSICS
제목
Measurement of charmless B decays to eta K-* and eta rho
저자
Wang, C. H.Abe, K.Adachi, I.Aihara, H.Anipko, D.Aushev, T.Bakich, A. M.Barberio, E.Bay, A.Belous, K.Bitenc, U.Blyth, S.Bondar, A.Bozek, A.Bracko, M.Chang, P.Chao, Y.Chen, A.Chen, W. T.Cheon, Byung GuChistov, R.Choi, Y.Choi, Y. K.Cole, S.Dalseno, J.Drutskoy, A.Eidelman, S.Fratina, S.Gabyshev, N.Garmash, A.Gershon, T.Gokhroo, G.Golob, B.Ha, H.Haba, J.Hara, T.Hayasaka, K.Hazumi, M.Heffernan, D.Hokuue, T.Hoshi, Y.Hou, W.-S.Iijima, T.Ikado, K.Imoto, A.Inami, K.Ishikawa, A.Ishino, H.Itoh, R.Iwasaki, M.Iwasaki, Y.Kaji, H.Kang, J. H.Kapusta, P.Katayama, N.Khan, H. R.Kichimi, H.Kim, Y. J.Kinoshita, K.Kulasiri, R.Kumar, R.Kuo, C. C.Kwon, Y.-J.Leder, G.Lee, M. J.Lee, S. E.Lesiak, T.Lin, S.-W.Liventsev, D.MacNaughton, J.Matsumoto, T.Matyja, A.McOnie, S.Miyake, H.Miyata, H.Mizuk, R.Nakano, E.Nakao, M.Natkaniec, Z.Nishida, S.Nitoh, O.Ogawa, S.Ohshima, T.Okuno, S.Onuki, Y.Ozaki, H.Pakhlov, P.Pakhlova, G.Park, H.Park, K. S.Pestotnik, R.Piilonen, L. E.Sakai, Y.Satoyama, N.Schneider, O.Schumann, J.Senyo, K.Sevior, M. E.Shapkin, M.Shibuya, H.Singh, J. B.Sokolov, A.Somov, A.Soni, N.Stanic, S.Staric, M.Stoeck, H.Suzuki, S. Y.Tamai, K.Tanaka, M.Taylor, G. N.Teramoto, Y.Tian, X. C.Tikhomirov, I.Tsuboyama, T.Tsukamoto, T.Uehara, S.Uglov, T.Ueno, K.Urquijo, P.Usov, Y.Varner, G.Villa, S.Wang, M.-Z.Watanabe, Y.Won, E.Xie, Q. L.Yamaguchi, A.Yamashita, Y.Zhang, C. C.Zhang, Z. P.Zhilich, V.Zupanc, A.
DOI
10.1103/PhysRevD.75.092005
발행일
2007-05
유형
Article
저널명
Physical Review D - Particles, Fields, Gravitation and Cosmology
75
9
페이지
1 ~ 10

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