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  1. Home
  2. Indian Institute of Technology Madras
  3. Publication8
  4. First observation of Bs0→J/ψη and Bs0→J/ψη′
 
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First observation of Bs0→J/ψη and Bs0→J/ψη′

Date Issued
03-05-2012
Author(s)
Li, J.
Adachi, I.
Aihara, H.
Arinstein, K.
Asner, D. M.
Aulchenko, V.
Aushev, T.
Bakich, A. M.
Bhardwaj, V.
Bhuyan, B.
Bischofberger, M.
Bondar, A.
Bozek, A.
BraÄ ko, M.
Brovchenko, O.
Browder, T. E.
Chang, M. C.
Chen, A.
Chen, P.
Cheon, B. G.
Chistov, R.
Cho, K.
Choi, S. K.
Choi, Y.
Dalseno, J.
Doleal, Z.
Drutskoy, A.
Eidelman, S.
Esen, S.
Fast, J. E.
Gaur, V.
Garmash, A.
Goh, Y. M.
Haba, J.
Hara, T.
Hayasaka, K.
Hayashii, H.
Horii, Y.
Hoshi, Y.
Hou, W. S.
Hsiung, Y. B.
Hyun, H. J.
Iijima, T.
Inami, K.
Ishikawa, A.
Itoh, R.
Iwabuchi, M.
Iwasaki, Y.
Iwashita, T.
Julius, T.
Kang, J. H.
Kapusta, P.
Katayama, N.
Kawasaki, T.
Kim, H. J.
Kim, H. O.
Kim, J. B.
Kim, K. T.
Kim, M. J.
Kim, Y. J.
Kinoshita, K.
Ko, B. R.
Kobayashi, N.
Kody, P.
Korpar, S.
Krian, P.
Krokovny, P.
Kuhr, T.
Kumar, R.
Kuzmin, A.
Kwon, Y. J.
Lange, J. S.
Lee, M. J.
Lee, S. H.
Li, Y.
James Frederick Libby 
Indian Institute of Technology, Madras
Liu, C.
Liu, Y.
Liu, Z. Q.
Liventsev, D.
Louvot, R.
Matvienko, D.
McOnie, S.
Miyazaki, Y.
Mizuk, R.
Mohanty, G. B.
Moll, A.
Mori, T.
Muramatsu, N.
Nakamura, I.
Nakano, E.
Nakao, M.
Nakazawa, H.
Natkaniec, Z.
Nishida, S.
Nishimura, K.
Nitoh, O.
Ogawa, S.
Ohshima, T.
Okuno, S.
DOI
10.1103/PhysRevLett.108.181808
Abstract
We report first observations of Bs0→J/ψη and Bs0→J/ψη′. The results are obtained from 121.4fb-1 of data collected at the Υ(5S) resonance with the Belle detector at the KEKB e+e- collider. We obtain the branching fractions B(Bs0→J/ψη)=[5.10±0.50(stat)±0. 25(syst)-0.79+1.14(NBs(*)B̄s(*))]×10 -4, and B(Bs0→J/ψη′)=[3.71±0. 61(stat)±0.18(syst)-0.57+0.83(NBs(*)B̄s(*))] ×10-4. The ratio of the two branching fractions is measured to be B(Bs→J/ψη′)B(Bs→J/ ψη)=0.73±0.14(stat)±0.02(syst). © 2012 American Physical Society.
Volume
108
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