| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1841908 | Nuclear Physics B | 2009 | 21 Pages |
Abstract
We calculate the two-loop QCD correction to the form factors of on-shell b-quark decay to an energetic massless quark, which constitutes the last missing piece required for an O(αs2) determination of |Vub| from inclusive semi-leptonic B¯âXuâν¯ decays in the shape-function region.
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
M. Beneke, T. Huber, Xin-Qiang Li,