Search for D-0(D)over-bar(0) mixing in the Dalitz plot analysis of D-0 -> K-S(0)pi(+)pi(-)
David M. Asner, S. A. Dytman, W. Love, S. S. Mehrabyan, J. Mueller, V. Savinov, Z. Li, A. Lopez, H. Méndez, J. Ramírez, G. S. Huang, David H. Miller, Victor Pavlunin, B. Sanghi, E. I. Shibata, Ian P. J. Shipsey, G. S. Adams, M. Chasse, M. Cravey, J. P. Cummings · Purdue e-Pubs (Purdue University System) · 2005
The resonant substructure in D-0-> K(S)(0)pi(+)pi(-) decays is described by a combination of ten quasi two-body intermediate states which include both CP-even and CP-odd eigenstates and one doubly Cabibbo suppressed channel. We present a formalism that connects the variation in D-0 decay time over the Dalitz plot with the mixing parameters, x and y, that describe off-shell and on-shell D-0-(D) over bar (0) mixing. We analyze the CLEO II.V data sample and find the parameters x and y are consistent with zero. We limit (-4.5 < x < 9.3)% and (-6.4 < y < 3.6)% at the 95% confidence level.