Dalitz Plot Analysis of D0-->K0bar K+ K-

Details Dalitz Plot Analysis of D0-->K0bar K+ K- Dalitz Plot Analysis of D0-->K0bar K+ K-

2005-07-06

arxiv.org/abs/hep-ex/0507026v2

Phys.Rev.D72:052008,2005

Physics

High Energy Physics

High Energy Physics - Experiment

16 pages, 10 postscript figues, 3 tables, submitted to Phys. Rev. D

Scientific paper

10.1103/PhysRevD.72.052008

A Dalitz plot analysis of approximately 12500 D0 events reconstructed in the hadronic decay D0-->K0bar K+ K- 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 Y4S resonance. The events are selected from e+ e- --> c cbar annihilations using the decay D*+ --> D0 pi+. The following ratio of branching fractions has been obtained: BR = Gamma(D0-->K0bar K+ K-)/Gamma(D0-->K0bar pi+ pi-) = (15.8+/-0.1(stat.)+/-0.5(syst.)x 10-2 Estimates of fractions and phases for resonant and non-resonant contributions to the Dalitz plot are also presented. The a0(980)-->K Kbar projection has been extracted with little background. A search for CP asymmetries on the Dalitz plot has been performed.

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