Measurement of B-0 -> (Ds-KS0)pi(+) and B+ -> Ds-K+K+ branching fractions

  • Wiechczynski, J.
  • Stypula, J.
  • Abdesselam, A.
  • Adachi, I.
  • Adamczyk, K.
  • ... Cheon, Byung Gu
  • 외 168명
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초록

We report a measurement of the B-0 and B+ meson decays to the (Ds-KS0)pi(+) and Ds-K+K+ final states, respectively, using 657 x 10(6)B (B) over bar pairs collected at the gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. Using the D-s(-) -> phi pi(-), K*(892)K-0(-) and (KSK-)-K-0 decay modes for the D-s reconstruction, we measure the following branching fractions: B(B-0 -> (Ds-KS0)pi(+))= [0.47 +/- 0.06(stat) +/- 0.05(syst)] x 10(-4) and B(B+ -> Ds-K+K+)= [0.93 +/- 0.22(stat) +/- 0.10(syst)] x 10(-5). We find the ratio of the branching fraction of B+ -> Ds-K+K+ to that of the analogous Cabibbo-favored B+ -> Ds-K+pi(+) decay to be R-B= 0.054 +/- 0.013(stat) +/- 0.006(syst), which is consistent with the naive factorization model. We also observe a deviation of the DsK invariant-mass distribution from the three-body phase-space model for both studied decays.

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DECAYSDETECTOR
제목
Measurement of B-0 -> (Ds-KS0)pi(+) and B+ -> Ds-K+K+ branching fractions
저자
Wiechczynski, J.Stypula, J.Abdesselam, A.Adachi, I.Adamczyk, K.Aihara, H.Al Said, S.Arinstein, K.Asner, D. M.Aulchenko, V.Aushev, T.Ayad, R.Bakich, A. M.Bansal, V.Bhardwaj, V.Bhuyan, B.Bobrov, A.Bondar, A.Bonvicini, G.Bozek, A.Bracko, M.Browder, T. E.Cervenkov, D.Chekelian, V.Cheon, Byung GuCho, K.Chobanova, V.Choi, S. -K.Choi, Y.Cinabro, D.Dalseno, J.Danilov, M.Dingfelder, J.Dolezal, Z.Drasal, Z.Drutskoy, A.Eidelman, S.Farhat, H.Fast, J. E.Ferber, T.Frost, O.Gaur, V.Gabyshev, N.Ganguly, S.Garmash, A.Getzkow, D.Gillard, R.Goh, Y. M.Grzymkowska, O.Haba, J.Hara, T.Hayasaka, K.Hayashii, H.He, X. H.Hou, W. -S.Huschle, M.Hyun, H. J.Iijima, T.Ishikawa, A.Itoh, R.Iwasaki, Y.Jaegle, I.Joffe, D.Joo, K. K.Julius, T.Kang, K. H.Kato, E.Kawasaki, T.Kichimi, H.Kim, D. Y.Kim, J. B.Kim, J. H.Kim, M. J.Kim, S. H.Kim, Y. J.Kinoshita, K.Ko, B. R.Kodys, P.Krizan, P.Krokovny, P.Kuhr, T.Kumita, T.Kuzmin, A.Kwon, Y. -J.Lange, J. S.Lee, I. S.Li, Y.Gioi, L. LiLibby, J.Liventsev, D.Lukin, P.Matvienko, D.Miyabayashi, K.Miyata, H.Mizuk, R.Mohanty, G. B.Moll, A.Mori, T.Mussa, R.Nakao, M.Nanut, T.Natkaniec, Z.Nisar, N. K.Nishida, S.Ogawa, S.Okuno, S.Pakhlov, P.Pakhlova, G.Park, C. W.Park, H.Pedlar, T. K.Petric, M.Piilonen, L. E.Ribezl, E.Ritter, M.Rostomyan, A.Sakai, Y.Sandilya, S.Santelj, L.Sanuki, T.Sato, Y.Savinov, V.Schneider, O.Schnell, G.Schwanda, C.Senyo, K.Seon, O.Sevior, M. E.Shebalin, V.Shen, C. P.Shibata, T. -A.Shiu, J. -G.Shwartz, B.Sibidanov, A.Simon, F.Sohn, Y. -S.Solovieva, E.Staric, M.Steder, M.Sumihama, M.Tamponi, U.Tanida, K.Tatishvili, G.Teramoto, Y.Thorne, F.Trabelsi, K.Uchida, M.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Usov, Y.Van Hulse, C.Vanhoefer, P.Varner, G.Vinokurova, A.Vorobyev, V.Vossen, A.Wagner, M. N.Wang, C. H.Wang, M. -Z.Wang, P.Watanabe, M.Watanabe, Y.Williams, K. M.Won, E.Yamaoka, J.Yashchenko, S.Yook, Y.Yusa, Y.Zhang, Z. P.Zhilich, V.Zhulanov, V.Zupanc, A.
DOI
10.1103/PhysRevD.91.032008
발행일
2015-02
유형
Article
저널명
Physical Review D - Particles, Fields, Gravitation and Cosmology
91
3
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1 ~ 9

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