Speaker
Dr
Adam LINCOLN
(Wayne State University)
Description
The decays of D0 and D0bar mesons produced from e+ e- annihilation at the psi(3770) resonance reflect quantum correlations, so that decay rates are sensitive to interference between indistinguishable final states. Using the CLEO-c detector at the Cornell Electron Storage Ring, we measure the time-independent decay rates of D0 decays to K- pi+, K+ pi-, several CP eigenstates, and semi-electronic states. We make use of both partially- and fully-reconstructed D0 D0bar pairs. A chi^2 minimization fitter extracts from these decay rates mixing and doubly Cabibbo suppressed decay parameters x^2, y, r^2, and cos(delta), along with isolated D0 branching fractions for all input final states. By constraining the branching fractions and r^2 with independent measurements, a first measurement of cos delta can be made. This result will be presented, and plans for improving this result will be outlined, including additional CP eigenstates, semi-muonic states, and wrong-sign semileptonic events such as K- pi+ vs. X e+ nu.
Authors
Dr
Adam LINCOLN
(Wayne State University)
Prof.
David Cassel
(Cornell University)
