Search for Rare or Forbidden Decays of the D0 Meson

B a B ar Collaboration

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

We present a search for nine lepton-number-violating and three lepton-flavor-violating neutral charm decays of the type D0→h′-h-′++ and D0→h′-h+′±, where h and h′ represent a K or π meson and and ′ an electron or muon. The analysis is based on 468 fb-1 of e+e- annihilation data collected at or close to the (4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory. No significant signal is observed for any of the twelve modes, and we establish 90% confidence level upper limits on the branching fractions in the range (1.0-30.6)×10-7. The limits are between 1 and 3 orders of magnitude more stringent than previous measurements.

Original languageEnglish
Article number071802
JournalPhysical Review Letters
Volume124
Issue number7
DOIs
StatePublished - 19 Feb 2020

Funding

FundersFunder number
CNRS-IN2P3
NFR
NSERC (Canada), CEA
USA-Israel
National Science Foundation
U.S. Department of Energy
Alfred P. Sloan Foundation
Science and Technology Facilities Council
British Skin Foundation
European Commission
Deutsche Forschungsgemeinschaft
Bundesministerium für Bildung und Forschung
Ministerio de Economía y Competitividad
Foundation for Fundamental Research on Matter
Instituto Nazionale di Fisica Nucleare
Université Pierre et Marie Curie
Ministry of Education and Science

    Fingerprint

    Dive into the research topics of 'Search for Rare or Forbidden Decays of the D0 Meson'. Together they form a unique fingerprint.

    Cite this