We report on a search for the flavor-changing neutral current decay $D^0 to mu^+mu^-$ using $50 times 10^6$ events recorded with a dimuon trigger in interactions of 920 GeV protons with nuclei by the HERA-B experiment. We find no evidence for such decays and set a 90% confidence level upper limit on the branching fraction $Br(D^0 to mu^+mu^-) <2.0 times 10^{-6}$

I. ABT, M. ADAMS, H. ALBRECHT, A. ALEKSANDROV, V. AMARAL, A. AMORIM, et al. (2004). Search for the flavor-changing neutral current decay D(0) ->mu(+)mu(-) with the HERA-B detector. PHYSICS LETTERS. SECTION B, 596, 173-183 [10.1016/j.physletb.2004.06.097].

Search for the flavor-changing neutral current decay D(0) ->mu(+)mu(-) with the HERA-B detector

BARGIOTTI, MARIANNE;BERTIN, ANTONIO;DE CASTRO, STEFANO;FABBRI, LAURA;FACCIOLI, PIETRO;GRIMALDI, FILIPPO;MASSA, IGNAZIO GIACOMO;PICCININI, MAURIZIO;SBRIZZI, ANTONIO;SEMPRINI CESARI, NICOLA;VILLA, MAURO;VITALE, ANTONIO;ZOCCOLI, ANTONIO
2004

Abstract

We report on a search for the flavor-changing neutral current decay $D^0 to mu^+mu^-$ using $50 times 10^6$ events recorded with a dimuon trigger in interactions of 920 GeV protons with nuclei by the HERA-B experiment. We find no evidence for such decays and set a 90% confidence level upper limit on the branching fraction $Br(D^0 to mu^+mu^-) <2.0 times 10^{-6}$
2004
I. ABT, M. ADAMS, H. ALBRECHT, A. ALEKSANDROV, V. AMARAL, A. AMORIM, et al. (2004). Search for the flavor-changing neutral current decay D(0) ->mu(+)mu(-) with the HERA-B detector. PHYSICS LETTERS. SECTION B, 596, 173-183 [10.1016/j.physletb.2004.06.097].
I. ABT; M. ADAMS; H. ALBRECHT; A. ALEKSANDROV; V. AMARAL; A. AMORIM; S.J. APLIN; V. AUSHEV; Y. BAGATURIA; V. BALAGURA; M. BARGIOTTI; O. BARSUKOVA; J. ...espandi
File in questo prodotto:
Eventuali allegati, non sono esposti

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/11585/2818
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 16
  • ???jsp.display-item.citation.isi??? 17
social impact