ISSN - 00319007, EISSN - 10797114, Physical Review Letters, 2004, vol. 92, p. 518011-518015
Observation of Radiative B → φKγ Decays
The radiative decay B → φKγ, which provide an important tool to search for physics beyond the standard model is observed. An upper limit for the particular decay mode and a branching fraction for the B -→φK-γ decay mode are obtained. It is found that the measured decay branching fraction is roughly an order of magnitude smaller than B→K*γ branching fractions. This factor can be attributed to the additional electron pair.