The inclusive B -> eta ' X-s decay and b -> sg* form factors

Abstract

We compute the branching ratio of inclusive B --> eta 'X-s decay based upon the QCD anomaly mechanism: b --> s + g* --> s + g + eta'. To obtain a reliable B --> eta 'X-s branching ratio, we calculate the b --> s + g* form factors up to the next-to-leading-logarithmic(NLL) approximation. We point out that the Standard Model prediction for B --> eta 'X-s is consistent with the CLEO data, in contrast to the claims of some previous works.