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.

Lees J.P., Poireau V., Tisserand V., Grauges E., Palano A., Eigen G., et al. (2020). Search for Rare or Forbidden Decays of the D0 Meson. PHYSICAL REVIEW LETTERS, 124(7), 1-8 [10.1103/PhysRevLett.124.071802].

Search for Rare or Forbidden Decays of the D0 Meson

Patrignani C.;
2020

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.
2020
Lees J.P., Poireau V., Tisserand V., Grauges E., Palano A., Eigen G., et al. (2020). Search for Rare or Forbidden Decays of the D0 Meson. PHYSICAL REVIEW LETTERS, 124(7), 1-8 [10.1103/PhysRevLett.124.071802].
Lees J.P.; Poireau V.; Tisserand V.; Grauges E.; Palano A.; Eigen G.; Brown D.N.; Kolomensky Yu.G.; Fritsch M.; Koch H.; Schroeder T.; Cheaib R.; Hear...espandi
File in questo prodotto:
File Dimensione Formato  
h_11585_772308.pdf

accesso aperto

Tipo: Versione (PDF) editoriale
Licenza: Licenza per Accesso Aperto. Creative Commons Attribuzione (CCBY)
Dimensione 377.94 kB
Formato Adobe PDF
377.94 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/772308
Citazioni
  • ???jsp.display-item.citation.pmc??? 0
  • Scopus 9
  • ???jsp.display-item.citation.isi??? 6
social impact