| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9857612 | Nuclear Physics B - Proceedings Supplements | 2005 | 8 Pages |
Abstract
Recent progress in the theoretical description of inclusive BâXulâν¯ decays in the shape-function region is reported. Finite moments of the shape function are related to HQET parameters. Event fractions for several experimental cuts are presented, with a particular emphasis on the hadronic variable P+=EHâ|PâH|. The aim of this talk is to introduce the P+ spectrum, to compare it to the hadronic invariant mass spectrum and the charged-lepton energy spectrum, and to study the prospect of evaluating |Vub| in the presence of a large background from BâXc decays.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Björn O. Lange,