| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5495302 | Physics Letters B | 2016 | 6 Pages |
Abstract
We study the effect of dimension 7 and 8 operators on inclusive semileptonic B decays and the extraction of |Vcb|. Using moments of semileptonic B decay spectra and information based on the Lowest-Lying State saturation Approximation (LLSA) we perform a global fit of the non-perturbative parameters of the heavy quark expansion including for the first time the O(1/mb4,5) contributions. Higher power corrections appear to have a very small effect on the extraction of |Vcb|, independently of the weight we attribute to the LLSA.
Related Topics
Physical Sciences and Engineering
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Authors
Paolo Gambino, Kristopher J. Healey, Sascha Turczyk,