Measurement of B-0 -> pi(+)pi(-)pi(+)pi(-) decays and search for B-0 -> rho(0)rho(0)

  • Chiang, C. -C.
  • Adachi, I.
  • Aihara, H.
  • Arinstein, K.
  • Aulchenko, V.
  • ... Cheon, Byung Gu
  • 외 141명
Citations

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17
Citations

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19

초록

We report on a search for the decay B-0 -> rho(0)rho(0) and other charmless modes with a pi(+)pi(-)pi(+)pi(-) final state, including B-0 -> rho(0)pi(+)pi(-), nonresonant B-0 -> 4 pi(+/-), B-0 -> rho(0)f(0)(980), B-0 -> f(0)( 980)f(0)(980) and B-0 -> f(0)(980)pi(+)pi(-). These results are obtained from a data sample containing 657 X 10(6) B (B) over bar collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We set an upper limit on B(B-0 -> rho(0)rho(0)) of 1.0 X 10(-6) at the 90% confidence level (C. L.). From our B-0 -> rho(0)rho(0) measurement and an isospin analysis, we determine the Cabibbo-Kobayashi-Maskawa phase phi(2) to be 91.7 +/- 14.9 degrees. We find excesses in B-0 -> rho(0)pi(+)pi(-) and nonresonant B-0 -> 4 pi(+/-) with 1.3 sigma and 2.5 sigma significance, respectively. The corresponding branching fractions are less than 12.0 X 10(-6) and 19.3 X 10(-6) at the 90% C.L. In addition, we set 90% C.L. upper limits as follows: B(B-0 -> rho(0)f(0)(980)) < 0.3 X 10(-6), B(B-0 -> f(0)(980)f(0)(980)) < 0.1 X 10(-6), and B(B-0 -> f(0)(980)pi(+)pi(-)) < 3.8 X 10(-6).

키워드

DELPHI DETECTORCP-VIOLATIONMONTE-CARLOASYMMETRIESCHARMLESSPHOTOS
제목
Measurement of B-0 -> pi(+)pi(-)pi(+)pi(-) decays and search for B-0 -> rho(0)rho(0)
저자
Chiang, C. -C.Adachi, I.Aihara, H.Arinstein, K.Aulchenko, V.Aushev, T.Bakich, A. M.Bedny, I.Bhardwaj, V.Bitenc, U.Bozek, A.Bracko, M.Browder, T. E.Chang, P.Chao, Y.Chen, A.Cheon, Byung GuChistov, R.Cho, I. -S.Choi, S. -K.Choi, Y.Dalseno, J.Dash, M.Dungel, W.Eidelman, S.Gabyshev, N.Goldenzweig, P.Golob, B.Ha, H.Haba, J.Hara, T.Hayasaka, K.Hazumi, M.Heffernan, D.Hoshi, Y.Hou, W. -S.Hsiung, Y. B.Hyun, H. J.Iijima, T.Inami, K.Ishikawa, A.Ishino, H.Itoh, R.Iwasaki, M.Iwasaki, Y.Kah, D. H.Kang, J. H.Kawai, H.Kawasaki, T.Kichimi, H.Kim, H. J.Kim, H. O.Kim, S. K.Kim, Y. I.Kim, Y. J.Kinoshita, K.Korpar, S.Krizan, P.Krokovny, P.Kumar, R.Kwon, Y. -J.Kyeong, S. -H.Lange, J. S.Lee, J. S.Lee, S. E.Li, J.Limosani, A.Lin, S. -W.Liu, C.Liventsev, D.Mandl, F.Matyja, A.McOnie, S.Miyata, H.Mizuk, R.Mori, T.Nakano, E.Nakao, M.Natkaniec, Z.Nishida, S.Nitoh, O.Ogawa, S.Ohshima, T.Okuno, S.Olsen, S. L.Ostrowicz, W.Ozaki, H.Pakhlov, P.Pakhlova, G.Park, C. W.Park, H.Park, H. K.Peak, L. S.Pestotnik, R.Piilonen, L. E.Sahoo, H.Sakai, Y.Schneider, O.Schumann, J.Schwanda, C.Schwartz, A. J.Senyo, K.Sevior, M. E.Shapkin, M.Shen, C. P.Shiu, J. -G.Shwartz, B.Singh, J. B.Somov, A.Stanic, S.Staric, M.Sumiyoshi, T.Tamura, N.Tanaka, M.Taylor, G. N.Teramoto, Y.Tikhomirov, I.Trabelsi, K.Uehara, S.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Usov, Y.Varner, G.Varvell, K. E.Vervink, K.Vinokurova, A.Wang, C. C.Wang, C. H.Wang, M. -Z.Wang, P.Wang, X. L.Watanabe, M.Watanabe, Y.Wedd, R.Wicht, J.Won, E.Yabsley, B. D.Yamashita, Y.Yamauchi, M.Zhang, Z. P.Zhilich, V.Zhulanov, V.Zivko, T.Zupanc, A.Zyukova, O.
DOI
10.1103/PhysRevD.78.111102
발행일
2008-12
유형
Article
저널명
Physical Review D - Particles, Fields, Gravitation and Cosmology
78
11
페이지
1 ~ 7

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