Search for flavor-changing neutral currents and lepton-family-number violation in two-body D-0 decays
Journal
Physical Review D
Journal Volume
61
Journal Issue
3
Pages
32005
Date Issued
2000
Author(s)
Pripstein, D.
Gidal, G.
Kowitt, M. S.
Luk, K. B.
Isenhower, L. D.
Sadler, M. E.
Schnathorst, R.
Lederman, L. M.
Schub, M. H.
Brown, C. N.
Cooper, W. E.
Gounder, K. N.
Mishra, C. S.
Carey, T. A.
Jansen, D. M.
Jeppesen, R. G.
Kapustinsky, J. S.
Lane, D. W.
Leitch, M. J.
Lillberg, J. W.
McGaughey, P. L.
Moss, J. M.
Peng, J. C.
Kaplan, D. M.
Luebke, W. R.
Preston, R. S.
Sa, J.
Tanikella, V.
Childers, R. L.
Darden, C. W.
Wilson, J. R.
Kiang, G. C.
Teng, P. K.
Chen, Y. C.
Abstract
We present the results of a search for the three neutral charm decays D0→μ±e∓, D0→μ+μ-, and D0 →e+e-. This study was based on data collected in Experiment 789 at the Fermi National Accelerator Laboratory using 800 GeV/c proton-Au and proton-Be interactions. No evidence is found for any of the decays. Upper limits on the branching ratios, at the 90% confidence level, of 1.56×10-5 for D0→μ+μ-, 8.19 ×10-6 for D0→e+e- and 1.72×10-5 for D0→μ±e∓ are obtained. ©2000 The American Physical Society.
Type
journal article