Abstract
QCD corrections to the penguin induced charmless inclusiveB decays are performed to an improved leading-log approximation. For processb→sqq (q=uds) andbb→ss, four previous missed 4-quark operators are included to make a complete leading log QCD corrected result. Furthermore, part of the next-leading log effect was also given for the above processes and processb→sg. In comparison to previous QCD corrected calculations by Grigjanis et al., the inclusive decay rates for processb→sqq (q=ud),b→ssq andbq→sq are suppressed 10%, 14% and 18% respectively. The branching ratio of processb→sg is enhanced by 2–3 orders, the result for this process is in agreement with the result of Ciuchini et al.
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This work is partly supported by the National Natural Science Foundation of China and the Doctoral Program Foundation of Institution of Higher Education
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Gao, C.S., Lü, C.D. & Qiu, ZM. QCD corrections to charmlessb→s processes. Z. Phys. C - Particles and Fields 69, 113–117 (1995). https://doi.org/10.1007/s00288950690113
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DOI: https://doi.org/10.1007/s00288950690113