First search for the flavor changing neutral current decay D0-->gammagamma. Academic Article uri icon

abstract

  • Using 13.8 fb(-1) of data collected at or just below the Upsilon(4S) with the CLEO detector, we report the result of a search for the flavor changing neutral current process D0-->gammagamma. We observe no significant signal for this decay mode and determine 90% confidence level upper limits on the branching fractions B(D0-->gammagamma)/B(D0-->pi(0)pi(0))<0.033 and B(D0-->gammagamma)<2.9 x 10(-5).

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Coan, T. E., Gao, Y. S., Liu, F., Maravin, Y., Stroynowski, R., Artuso, M., ... CLEO Collaboration.

publication date

  • January 1, 2003 11:11 AM