Search for flavor-changing neutral currents and lepton-family-number violation in two-body D0 decays
D. Pripstein, C.N. Brown, T.A. Carey, Y.C. Chen, R.L. Childers, W.E., Cooper, C.W. Darden, G. Gidal, K.N. Gounder, P.M. Ho, L.D. Isenhower, D.M., Jansen, R.G. Jeppesen, D.M. Kaplan, J.S. Kapustinsky, G.C. Kiang, M.S., Kowitt, D.W. Lane, L.M. Lederman, M.J. Leitch, J.W. Lillberg
TL;DR
This paper reports a search for rare D0 meson decays involving flavor-changing neutral currents and lepton-family-number violation, setting upper limits on their occurrence probabilities with no evidence of such decays found.
Contribution
It provides the first experimental upper limits on the branching ratios for D0 -> mu e, D0 -> mu mu, and D0 -> e e decays in high-energy proton interactions.
Findings
No evidence for the targeted decays was observed.
Upper limits on branching ratios were established at 90% confidence level.
Results constrain new physics models predicting these rare decays.
Abstract
Results of a search for the three neutral charm decays, D0 -> mu e, D0 -> mu mu, and D0 -> e e, are presented. 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, are obtained.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.