Radiative rare $B$ decays revisited

We reexamine contributions of higher K-resonances to the radiative rare decays b → sγ in the limit where both the b- and s-quark are considered heavy. Using form factor definitions consistent with the HQET covariant trace formalism, we find significant disagreement with previous work and excellent agreement with experimental results. In particular, the two largest fractions of the inclusive b → sγ branching ratio are found to be (16.8 |+- 6.4)% for B → K∗ (892)γ and (6.2 ± 2.9)% for B → K2∗ (1430)γ decays. We also compare the contribution from the radiative decays into the eight K-meson states to the inclusive experimental b → sγ mass distribution.