Search for Flavor-Changing Neutral Current and Lepton-Flavor Violating Decays of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>D</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:mo>→</mml:mo><mml:msup><mml:mi>l</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>l</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math>

B. Aubert, R. Barate, D. Boutigny, F. Couderc, J.-M. Gaillard, A. Hicheur, Y. Karyotakis, J. P. Lees, V. Tisserand, A. Zghiche

Abstract

We report on a search for the flavor-changing neutral current decays D0→e+e− and D0→μ+μ−, and the lepton-flavor violating decay D0→e±μ∓. The measurement is based on 122 fb−1 of data collected by the BABAR detector at the SLAC PEP-II asymmetric e+e− collider. No evidence is found for any of the decays. The upper limits on the branching fractions, at the 90% confidence level, are 1.2×10−6 for D0→e+e−, 1.3×10−6 for D0→μ+μ−, and 8.1×10−7 for D0→e±μ∓.Received 9 August 2004DOI:https://doi.org/10.1103/PhysRevLett.93.191801©2004 American Physical Society

Locations

• Physical Review Letters - View
• arXiv (Cornell University) - View - PDF
• DSpace@MIT (Massachusetts Institute of Technology) - View - PDF
• Radboud Repository (Radboud University) - View - PDF
• PubMed - View
• DataCite API - View