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Phys Rev Lett. 2006 Dec 31;97(26):261803. doi: 10.1103/PhysRevLett.97.261803. Epub 2006 Dec 29.

Observation of B(+)-->phiphiK(+) and evidence for B(0)-->phiphiK(0) below eta(c) threshold.

Physical review letters

B Aubert, M Bona, D Boutigny, F Couderc, Y Karyotakis, J P Lees, V Poireau, V Tisserand, A Zghiche, E Grauges, A Palano, J C Chen, N D Qi, G Rong, P Wang, Y S Zhu, G Eigen, I Ofte, B Stugu, G S Abrams, M Battaglia, D N Brown, J Button-Shafer, R N Cahn, E Charles, M S Gill, Y Groysman, R G Jacobsen, J A Kadyk, L T Kerth, Yu G Kolomensky, G Kukartsev, G Lynch, L M Mir, T J Orimoto, M Pripstein, N A Roe, M T Ronan, W A Wenzel, P Del Amo Sanchez, M Barrett, K E Ford, A J Hart, T J Harrison, C M Hawkes, A T Watson, T Held, H Koch, B Lewandowski, M Pelizaeus, K Peters, T Schroeder, M Steinke, J T Boyd, J P Burke, W N Cottingham, D Walker, D J Asgeirsson, T Cuhadar-Donszelmann, B G Fulsom, C Hearty, N S Knecht, T S Mattison, J A McKenna, A Khan, P Kyberd, M Saleem, D J Sherwood, L Teodorescu, V E Blinov, A D Bukin, V P Druzhinin, V B Golubev, A P Onuchin, S I Serednyakov, Yu I Skovpen, E P Solodov, K Yu Todyshev, M Bondioli, M Bruinsma, M Chao, S Curry, I Eschrich, D Kirkby, A J Lankford, P 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Affiliations

  1. Laboratoire de Physique des Particules, IN2P3/CNRS et Université de Savoie, F-74941 Annecy-Le-Vieux, France.

PMID: 17280418 DOI: 10.1103/PhysRevLett.97.261803

Abstract

We report measurements of the decays B(+)-->phiphiK(+) and B(0)-->phiphiK(0) using a sample of 231 x 10(6) BB pairs collected with the BABAR detector at the PEP-II asymmetric-energy B factory at the Stanford Linear Accelerator Center. The branching fractions are measured to be B(B(+)-->phiphiK(+))=(7.5+/-1.0(stat)+/-0.7(syst)) x 10(-6) and B(B(0)-->phiphiK(0))=(4.1(-1.4)(+1.7)(stat)+/-0.4(syst)) x 10(-6) for a phiphi invariant mass below 2.85 GeV/c(2).

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