Search for the decay B-0 -> J/psi gamma

Abstract

We present the results of a search for the radiative decay B-0-->J/psigamma in a data set containing 123.0x10(6) Y(4S)-->B (B) over bar decays, collected by the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) storage ring at SLAC. We find no evidence for a signal and place an upper limit of B(B-0-->J/psigamma)<1.6x10(-6) at 90% confidence level