A Dalitz plot analysis of approximately 12 500 D-0 events reconstructed in the hadronic decay D-0->(K) over bar (K+K-)-K-0 is presented. This analysis is based on a data sample of 91.5 fb(-1) collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) storage rings at SLAC running at center-of-mass energies on and 40 MeV below the Upsilon(4S) resonance. The events are selected from e(+)e(-)-> c (c) over bar annihilations using the decay D*+-> D(0)pi(+). The following ratio of branching fractions has been obtained: BR=Gamma(D-0->(K) over bar (K+K-)-K-0)Gamma(D-0->(K) over bar (0)pi(+)pi(-))=(15.8 +/- 0.1(stat.)+/- 0.5(syst.))x10(-2). Estimates of fractions and phases for resonant and nonresonant contributions to the Dalitz plot are also presented. The a(0)(980)->(K) over barK projection has been extracted with little background. A search for CP asymmetries on the Dalitz plot has been performed.

Dalitz plot analysis of D-0 ->(K)over-bar(0)K(+)K(-) / B. Aubert, R. Barate, D. Boutigny, F. Couderc, Y. Karyotakis, J.P. Lees, V. Poireau, V. Tisserand, A. Zghiche, E. Grauges, A. Palano, M. Pappagallo, A. Pompili, J.C. Chen, N.D. Qi, G. Rong, P. Wang, Y.S. Zhu, G. Eigen, I. Ofte, B. Stugu, G.S. Abrams, M. Battaglia, A.B. Breon, D.N. Brown, J. Button-Shafer, R.N. Cahn, E. Charles, C.T. Day, M.S. Gill, A.V. Gritsan, Y. Groysman, R.G. Jacobsen, R.W. Kadel, J. Kadyk, L.T. Kerth, Y.G. Kolomensky, G. Kukartsev, G. Lynch, L.M. Mir, P.J. Oddone, T.J. Orimoto, M. Pripstein, N.A. Roe, M.T. Ronan, W.A. Wenzel, M. Barrett, K.E. Ford, T.J. Harrison, A.J. Hart, C.M. Hawkes, S.E. Morgan, A.T. Watson, M. Fritsch, K. Goetzen, T. Held, H. Koch, B. Lewandowski, M. Pelizaeus, K. Peters, T. Schroeder, M. Steinke, J.T. Boyd, J.P. Burke, N. Chevalier, W.N. Cottingham, M.P. Kelly, T. Cuhadar-Donszelmann, B.G. Fulsom, C. Hearty, N.S. Knecht, T.S. Mattison, J.A. McKenna, A. Khan, P. Kyberd, M. Saleem, L. Teodorescu, A.E. Blinov, V.E. Blinov, A.D. Bukin, V.P. Druzhinin, V.B. Golubev, E.A. Kravchenko, A.P. Onuchin, S.I. Serednyakov, Y.I. Skovpen, E.P. Solodov, A.N. Yushkov, D. Best, M. Bondioli, M. Bruinsma, M. Chao, I. Eschrich, D. Kirkby, A.J. Lankford, M. Mandelkern, R.K. Mommsen, W. Roethel, D.P. Stoker, C. Buchanan, B.L. Hartfiel, Falso Weinstein, S.D. Foulkes, J.W. Gary, O. Long, B.C. Shen, K. Wang, L. Zhang, D. del Re, H.K. Hadavand, E.J. Hill, D.B. MacFarlane, H.P. Paar, S. Rahatlou, V. Sharma, J.W. Berryhill, C. Campagnari, A. Cunha, B. Dahmes, T.M. Hong, M.A. Mazur, J.D. Richman, W. Verkerke, T.W. Beck, A.M. Eisner, C.J. Flacco, C.A. Heusch, J. Kroseberg, W.S. Lockman, G. Nesom, T. Schalk, B.A. Schumm, A. Seiden, P. Spradlin, D.C. Williams, M.G. Wilson, J. Albert, E. Chen, G.P. Dubois-Felsmann, A. Dvoretskii, D.G. Hitlin, I. Narsky, T. Piatenko, F.C. Porter, A. Ryd, A. Samuel, R. Andreassen, S. Jayatilleke, G. Mancinelli, B.T. Meadows, M.D. Sokoloff, F. Blanc, P. Bloom, S. 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Dalitz plot analysis of D-0 ->(K)over-bar(0)K(+)K(-)

A. Lazzaro;V. Lombardo;F. Palombo;N. Neri;
2005

Abstract

A Dalitz plot analysis of approximately 12 500 D-0 events reconstructed in the hadronic decay D-0->(K) over bar (K+K-)-K-0 is presented. This analysis is based on a data sample of 91.5 fb(-1) collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) storage rings at SLAC running at center-of-mass energies on and 40 MeV below the Upsilon(4S) resonance. The events are selected from e(+)e(-)-> c (c) over bar annihilations using the decay D*+-> D(0)pi(+). The following ratio of branching fractions has been obtained: BR=Gamma(D-0->(K) over bar (K+K-)-K-0)Gamma(D-0->(K) over bar (0)pi(+)pi(-))=(15.8 +/- 0.1(stat.)+/- 0.5(syst.))x10(-2). Estimates of fractions and phases for resonant and nonresonant contributions to the Dalitz plot are also presented. The a(0)(980)->(K) over barK projection has been extracted with little background. A search for CP asymmetries on the Dalitz plot has been performed.
Settore FIS/01 - Fisica Sperimentale
2005
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