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Search for the decay B0→DK <sup>*</sup>0 followed by D→K <sup>-</sup>π <sup>+</sup>
Date Issued
03-07-2012
Author(s)
Negishi, K.
Horii, Y.
Onuki, Y.
Sanuki, T.
Yamamoto, H.
Adachi, I.
Aihara, H.
Asner, D. M.
Aushev, T.
Bakich, A. M.
Ban, Y.
Belous, K.
Bhuyan, B.
Bondar, A.
Browder, T. E.
Chang, M. C.
Chen, A.
Chen, P.
Cheon, B. G.
Chilikin, K.
Chistov, R.
Cho, I. S.
Cho, K.
Choi, Y.
Dalseno, J.
Doleal, Z.
Drásal, Z.
Drutskoy, A.
Eidelman, S.
Fast, J. E.
Gaur, V.
Gabyshev, N.
Goh, Y. M.
Haba, J.
Hayashii, H.
Hoshi, Y.
Hou, W. S.
Hyun, H. J.
Iijima, T.
Inami, K.
Ishikawa, A.
Itoh, R.
Iwabuchi, M.
Iwasaki, Y.
Iwashita, T.
Julius, T.
Kang, J. H.
Kawasaki, T.
Kiesling, C.
Kim, H. J.
Kim, J. B.
Kim, J. H.
Kim, K. T.
Kim, M. J.
Kim, Y. J.
Ko, B. R.
Kody, P.
Korpar, S.
Kouzes, R. T.
Krokovny, P.
Kuhr, T.
Kwon, Y. J.
Lee, S. H.
Indian Institute of Technology, Madras
Liu, C.
Liu, Y.
Liu, Z. Q.
Louvot, R.
Matvienko, D.
McOnie, S.
Miyabayashi, K.
Miyata, H.
Miyazaki, Y.
Mohapatra, D.
Moll, A.
Muramatsu, N.
Nakano, E.
Nakao, M.
Nishida, S.
Nishimura, K.
Nitoh, O.
Ogawa, S.
Ohshima, T.
Okuno, S.
Pakhlova, G.
Park, H. K.
Pedlar, T. K.
Pestotnik, R.
PetriÄ , M.
Piilonen, L. E.
Röhrken, M.
Ryu, S.
Sakai, K.
Sakai, Y.
Schneider, O.
Schwanda, C.
Schwartz, A. J.
Senyo, K.
Sevior, M. E.
Shapkin, M.
Abstract
We report a study of the decay B0→DK +π - followed by D→K -π +, where D indicates D0 or D ̄0. We reconstruct the DK +π - state in a phase space corresponding to DK *(892)0. The CP-violating angle 3 affects its decay rate via the interference between b→u and b→c transitions. The result is obtained from a 711fb -1 data sample that contains 772×106BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e +e - collider. We measure the ratio R DK *0 Γ(B0→[K -π +] DK +π -)/Γ(B0→[K +π -] DK +π -) to be (4.5-5.0-1.8+5.6+2.8) ×10 -2, and set an upper limit of R DK *0<0. 16 at the 95% credible interval. © 2012 American Physical Society.
Volume
86