Published July 1, 2008
| public
Journal Article
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Subleading shape-function effects and the extraction of |Vub|
- Creators
- Lee, Keith S. M.
Abstract
We derive a class of formulae relating moments of B-->Xu[script-l][overline nu ] to B-->Xsgamma in the shape-function region, where mX^2~mbLambdaQCD. We also derive an analogous class of formulae involving the decay B-->Xs[script-l]+[script-l]-. These results incorporate LambdaQCD/mb power corrections, but are independent of leading and subleading hadronic shape functions. Consequently, they enable one to determine |Vub|/|VtbVts*| to subleading order in a model-independent way.
Additional Information
©2008 The American Physical Society. (Received 26 February 2008; published 7 July 2008)Files
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Additional details
- Eprint ID
- 11104
- Resolver ID
- CaltechAUTHORS:LEEprd08
- Created
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2008-07-15Created from EPrint's datestamp field
- Updated
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2023-06-01Created from EPrint's last_modified field