Resolved Power Corrections to the Inclusive Decay B‾→Xsℓ+ℓ

We identify the correct power counting of all the variables in the low-q2 window of the inclusive decay B‾→Xs within the effective theory SCET if a hadronic mass cut is imposed. Furthermore we analyse the resolved power corrections at the order 1/mb in a systematic way. The resolved contributions –...

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Published inNuclear and particle physics proceedings Vol. 285-286; pp. 57 - 62
Main Authors Hurth, Tobias, Fickinger, Michael, Turczyk, Sascha, Benzke, Michael
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.04.2017
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Summary:We identify the correct power counting of all the variables in the low-q2 window of the inclusive decay B‾→Xs within the effective theory SCET if a hadronic mass cut is imposed. Furthermore we analyse the resolved power corrections at the order 1/mb in a systematic way. The resolved contributions – as a special feature – stay nonlocal when the hadronic mass cut is released. Thus, they represent an irreducible uncertainty independent of the hadronic mass cut.
ISSN:2405-6014
2405-6022
DOI:10.1016/j.nuclphysbps.2017.03.011