Search for D0 to p e- and D0 to pbar e+

Details Search for D0 to p e- and D0 to pbar e+ Search for D0 to p e- and D0 to pbar e+

2009-04-10

arxiv.org/abs/0904.1619v3

Phys.Rev.D79:097101,2009

Physics

High Energy Physics

High Energy Physics - Experiment

10 pages, available through http://www.lns.cornell.edu/public/CLNS/, submitted to PRD. Comments: changed abstract, added refer

Scientific paper

10.1103/PhysRevD.79.097101

Using data recorded by CLEO-c detector at CESR, we search for simultaneous baryon and lepton number violating decays of the D^0 meson, specifically, D^0 --> p-bar e^+, D^0-bar --> p-bar e^+, D^0 --> p e^- and D^0-bar --> p e^-. We set the following branching fraction upper limits: D^0 --> p-bar e^+ (D^0-bar --> p-bar e^+) < 1.1 *10^{-5} and D^0 --> p e^- (D^0-bar --> p e^-) < 1.2 * 10^{-5}, both at 90% confidence level.

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