Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 11, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP11(2010)109
Keywords
B-Physics; Heavy Quark Physics; Quark Masses and SM Parameters; Standard Model
Categories
Funding
- German research foundation DFG [MA1187/10-1]
- German Ministry of Research (BMBF) [05H09PSF]
- [RSGSS-65751.2010.2]
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We discuss order 1/m(b)(4) and 1/m(b)(5) corrections in inclusive semileptonic decay of a B meson. We identify relevant hadronic matrix elements of dimension seven and eight and estimate them using the ground-state saturation approximation. Within this approach the effects on the integrated rate and on kinematic moments are estimated. The overall relative shift in V-cb turns out about +0.4% as applied to the existing fits. Similar estimates are presented for B -> Xs + gamma decays.
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