Study of B-0 -> rho(+)rho(-) decays and implications for the CKM angle phi(2)

  • Vanhoefer, P.
  • Dalseno, J.
  • Kiesling, C.
  • Abdesselam, A.
  • Adachi, I.
  • ... Cheon, Byung Gu
  • 외 181명
Citations

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27
Citations

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36

초록

We present a measurement of the branching fraction and the longitudinal polarization fraction of B-0 -> rho(+)rho(-) decays, as well as the time-dependent CP violating parameters in decays into longitudinally polarized rho(+)rho(-) pairs with Belle's final data set of 772 x 10(6) B (B) over bar pairs, at the Upsilon(4S) resonance, collected at the asymmetric-energy e(+)e(-) collider KEKB. We obtain B(B-0 -> rho(+)rho(-)) = (28.3 +/- 1.5(stat) +/- 1.5(syst)) x 10(-6), f(L) = 0.988 +/- 0.012(stat) +/- 0.023(syst), A(CP) = 0.00 +/- 0.10(stat) +/- 0.06(syst), S-CP = -0.13 +/- 0.15(stat) +/- 0.05(syst). We perform an isospin analysis to constrain the Cabibbo-Kobayashi-Maskawa angle phi(2) and obtain two solutions with phi(2) = (93.7 +/- 10.6)degrees, being most compatible with other Standard-Model based fits to the data.

키워드

CP-VIOLATIONASYMMETRIES
제목
Study of B-0 -> rho(+)rho(-) decays and implications for the CKM angle phi(2)
저자
Vanhoefer, P.Dalseno, J.Kiesling, C.Abdesselam, A.Adachi, I.Aihara, H.Al Said, S.Arinstein, K.Asner, D. M.Atmacan, H.Aushev, T.Aziz, T.Babu, V.Badhrees, I.Bakich, A. M.Bansal, V.Barberio, E.Behera, P.Bhuyan, B.Biswal, J.Bobrov, A.Bozek, A.Bracko, M.Browder, T. E.Cervenkov, D.Chang, P.Chekelian, V.Chen, A.Cheon, Byung GuChilikin, K.Chistov, R.Chobanova, V.Choi, S. -K.Choi, Y.Cinabro, D.Danilov, M.Dash, N.Dingfelder, J.Dolezal, Z.Drasal, Z.Dutta, D.Eidelman, S.Farhat, H.Fast, J. E.Ferber, T.Fulsom, B. G.Gaur, V.Gabyshev, N.Garmash, A.Gillard, R.Goh, Y. M.Goldenzweig, P.Golob, B.Greenwald, D.Haba, J.Hamer, P.Hara, T.Hayasaka, K.Hayashii, H.He, X. H.Horiguchi, T.Hou, W. -S.Iijima, T.Inami, K.Ishikawa, A.Itoh, R.Iwasaki, Y.Jacobs, W. W.Jaegle, I.Joffe, D.Joo, K. K.Julius, T.Kang, K. H.Kato, E.Katrenko, P.Kawasaki, T.Kim, D. Y.Kim, H. J.Kim, J. B.Kim, J. H.Kim, K. T.Kim, M. J.Kim, S. H.Kim, Y. J.Kinoshita, K.Ko, B. R.Korpar, S.Krizan, P.Krokovny, P.Kuhr, T.Kumita, T.Kuzmin, A.Kwon, Y. -J.Lee, I. S.Li, L.Li, Y.Gioi, L. LiLibby, J.Liventsev, D.Lukin, P.Masuda, M.Matvienko, D.Miyabayashi, K.Miyata, H.Mizuk, R.Mohanty, G. B.Mohanty, S.Moll, A.Moon, H. K.Mori, T.Nakano, E.Nakao, M.Nanut, T.Natkaniec, Z.Nayak, M.Nisar, N. K.Nishida, S.Ogawa, S.Okuno, S.Pakhlov, P.Pakhlova, G.Pal, B.Park, C. W.Park, H.Pedlar, T. K.Pestotnik, R.Petric, M.Piilonen, L. E.Pulvermacher, C.Ribezl, E.Ritter, M.Rostomyan, A.Sahoo, H.Sakai, Y.Sandilya, S.Santelj, L.Sanuki, T.Sato, Y.Savinov, V.Schneider, O.Schnell, G.Schwanda, C.Schwartz, A. J.Seino, Y.Senyo, K.Seon, O.Sevior, M. E.Shebalin, V.Shen, C. P.Shibata, T. -A.Shiu, J. -G.Simon, F.Sohn, Y. -S.Sokolov, A.Solovieva, E.Staric, M.Sumihama, M.Sumiyoshi, T.Tamponi, U.Teramoto, Y.Trabelsi, K.Uchida, M.Uglov, T.Unno, Y.Uno, S.Usov, Y.Van Hulse, C.Varner, G.Vinokurova, A.Vossen, A.Wagner, M. N.Wang, C. H.Wang, M. -Z.Wang, P.Watanabe, M.Watanabe, Y.Won, E.Yamamoto, H.Yamaoka, J.Yashchenko, S.Ye, H.Yook, Y.Yusa, Y.Zhang, Z. P.Zhilich, V.Zhulanov, V.Zupanc, A.
DOI
10.1103/PhysRevD.93.032010
발행일
2016-02
유형
Article
저널명
Physical Review d
93
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