1/mb2 correction to the left-right lepton polarization asymmetry in the decay B -> Xs mu+ mu-
Abstract
Using a known result by Falk et al. for the 1/mb2 correction to the dilepton invariant mass spectrum in the decay B → Xs μ+ μ-, we calculate the 1/mb2 correction to the left-right muon polarization asymmetry in this decay. Employing an up-to-date range of values for the non-perturbative parameter λ1, we find that the correction is much smaller than it should have been expected from the previous work by Falk et al.
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