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Observation of the decay B0 →η′K∗ (892)0
Date Issued
21-10-2014
Author(s)
Sato, S.
Yusa, Y.
Mohanty, G. B.
Abdesselam, A.
Adachi, I.
Aihara, H.
Al Said, S.
Asner, D. M.
Aushev, T.
Ayad, R.
Bahinipati, S.
Bakich, A. M.
Bansal, V.
Bhardwaj, V.
Bhuyan, B.
Bonvicini, G.
Bozek, A.
BraÄ ko, M.
Browder, T. E.
ÄŒervenkov, D.
Chang, P.
Chekelian, V.
Chen, A.
Cheon, B. G.
Chilikin, K.
Cho, K.
Chobanova, V.
Choi, Y.
Cinabro, D.
Dalseno, J.
Danilov, M.
DoleŽal, Z.
Drásal, Z.
Drutskoy, A.
Eidelman, S.
Farhat, H.
Fast, J. E.
Ferber, T.
Frost, O.
Gaur, V.
Ganguly, S.
Garmash, A.
Gillard, R.
Glattauer, R.
Goh, Y. M.
Golob, B.
Grzymkowska, O.
Hayasaka, K.
Hayashii, H.
He, X. H.
Higuchi, T.
Hou, W. S.
Huschle, M.
Iijima, T.
Inami, K.
Ishikawa, A.
Itoh, R.
Iwasaki, Y.
Jaegle, I.
Joo, K. K.
Julius, T.
Kato, E.
Kawasaki, T.
Kim, D. Y.
Kim, J. B.
Kim, J. H.
Kim, K. T.
Kim, M. J.
Kim, Y. J.
Kinoshita, K.
Klucar, J.
Ko, B. R.
Kodyš, P.
Korpar, S.
KriŽan, P.
Krokovny, P.
Kuhr, T.
Kumita, T.
Kwon, Y. J.
Li, J.
Li, Y.
Libby, J.
Liventsev, D.
Matvienko, D.
Miyabayashi, K.
Miyata, H.
Mizuk, R.
Moll, A.
Nakano, E.
Nakao, M.
Nanut, T.
Natkaniec, Z.
Nedelkovska, E.
Nisar, N. K.
Nishida, S.
Ogawa, S.
Okuno, S.
Pakhlov, P.
Pakhlova, G.
Park, H.
Abstract
We report a search for charmless hadronic decays of neutral B mesons to η′K∗(892)0. The results are based on a 711fb-1 data sample that contains 772×106BB¯ pairs, collected at the (4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. We observe the decay for the first time with a significance of 5.0 standard deviations and obtain its branching fraction B[B0→η′K∗(892)0]=[2.6±0.7(stat)±0.2(syst)]×10-6. We also measure the CP-violating asymmetry as ACP[B0→η′K∗(892)0]=-0.22±0.29(stat)±0.07(syst).
Volume
90