Search for the rare decay D-0 -> gamma gamma at Belle

We search for the rare radiative decay D-0 -> gamma gamma using a data sample with an integrated luminosity of 832 fb(-1) recorded by the Belle detector at the KEKB e(+)e(-) asymmetric-energy collider. We find no statistically significant signal and set an upper limit on the branching fraction of B(D-0 -> gamma gamma) < 8.5 x 10(-7) at 90% confidence level. This is the most restrictive limit on the decay channel to date.


Published in:
Physical Review D, 93, 5, 051102(R)
Year:
2016
Publisher:
College Pk, Amer Physical Soc
ISSN:
2470-0010
Laboratories:




 Record created 2016-07-19, last modified 2018-09-13


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