Search for D-0 -> (p)over-bare(+) and D-0 -> pe(-)
P. D. Rubin, N. Lowrey, S. S. Mehrabyan, M. Selen, J. Wiss, Ryan Edward Mitchell, M. R. Shepherd, Dina Germanos Besson, T. K. Pedlar, D. Cronin-Hennessy, K. Y. Gao, J. Hietala, Y. Kubota, Tânia Aparecida da Silva Klein, Ronald A. Poling, A. W. Scott, P. Zweber, S. Dobbs, Z. Metreveli, K. K. Seth · Purdue e-Pubs (Purdue University System) · 2009
We search for simultaneous baryon and lepton number violating decays of the D 0 meson.Specifically, we use 281 pb À1 of data taken on the c ð3770Þ resonance with the CLEO-c detector at the CESR collider to look for decays D 0 !" pe þ , " D 0 !" pe þ , D 0 !pe À , and " D 0 !pe À .We find no significant signals and set the following branching fraction upper limits:, both at the 90% confidence level.