Original scientific paper

Weak bottom-quark decays and QCD

Branko Guberina ; Laboratoire de Physique Theorique et Hautes Energies, Universite de Paris XI, F-91405 Orsay, France

Abstract

QCD effects in weak b-quark decays are studied in the Kobayashi-Maskawa model using renormalization-group techniques to sum up leading logarithms. It is found that penguins are more stable to the variation of parameters than in the lowest-order estimate. Our analysis confirms that the Cabibbo pattern will be changed. It is estimated that for inclusive decays with no charmed quarks in the :final states the ratio I' (B → K + nX) / I' (B → (n + 1) X) is approximately equal to 0.3-1.2 instead of being 5%.

Keywords

Hrčak ID:

329097

URI

https://hrcak.srce.hr/329097

Publication date:

9.1.1984.

Article data in other languages: croatian

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