Measurements of CP-violating asymmetries in the decay B0-->K+K-K0

• Published in: Physical review letters 2007-10, Vol.99 (16), p.161802-161802
• Main Authors: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, J P, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Stugu, B, Sun, L, Abrams, G S, Battaglia, M, Brown, D N, Button-Shafer, J, Cahn, R N, Groysman, Y, Jacobsen, R G, Kadyk, J A, Kerth, L T, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, L M, Orimoto, T J, Ronan, M T, Tackmann, K, Wenzel, W A, Del Amo Sanchez, P, Hawkes, C M, Watson, A T, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, D J, Cuhadar-Donszelmann, T, Fulsom, B G, Hearty, C, Mattison, T S, McKenna, J A, Khan, A, Saleem, M, Teodorescu, L, Blinov, V E, Bukin, A D, Druzhinin, V P, Golubev, V B, Onuchin, A P, Serednyakov, S I, Skovpen, Yu I, Solodov, E P, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, A J, Lund, P, Mandelkern, M, Martin, E C, Stoker, D P, Abachi, S, Buchanan, C, Foulkes, S D, Gary, J W, Liu, F, Long, O, Shen, B C, Zhang, L, Paar, H P, Rahatlou, S, Sharma, V, Berryhill, J W, Campagnari, C, Cunha, A, Dahmes, B, Hong, T M, Kovalskyi, D, Richman, J D, Beck, T W, Eisner, A M, Flacco, C J, Heusch, C A, Kroseberg, J, Lockman, W S, Schalk, T, Schumm, B A, Seiden, A, Williams, D C, Wilson, M G
• Format: Article
• Language: English
• Subjects: DALITZ PLOT; DECAY; Experiment-HEP,HEPEX; Experiments; Física de partícules; PARTICLE ACCELERATORS; Particle physics; STANFORD LINEAR ACCELERATOR CENTER
• ISSN: 0031-9007; 1079-7114
• DOI: 10.1103/PhysRevLett.99.161802

We analyze the decay B0-->K+K-K0 using 383 x 10(6) BB events collected by the BABAR detector at SLAC to extract CP violation parameter values over the Dalitz plot. Combining all K+K-K0 events, we find ACP=-0.015+/-0.077+/-0.053 and beta eff = 0.352+/-0.076+/-0.026 rad, corresponding to a CP violation significance of 4.8 sigma. A second solution near pi/2-beta eff is disfavored with a significance of 4.5 sigma. We also report ACP and beta eff separately for decays to phi(1020)K0, f0(980)K0, and K+K-K0 with mK+K- > 1.1 GeV/c2.