Back to Search
Start Over
QCD sum rule calculation of quark-gluon three-body components in the B-meson wave function.
- Source :
-
AIP Conference Proceedings . 10/21/2011, Vol. 1388 Issue 1, p380-383. 4p. - Publication Year :
- 2011
-
Abstract
- We discuss the QCD sum rule calculation of the heavy-quark effective theory parameters λE and λH, which represent quark-gluon three-body components in the B-meson wave function. We update the sum rules for λE,H calculating the new higher-order contributions to the operator product expansion for the corresponding correlator, i.e., the order αs radiative corrections to the Wilson coefficients associated with the dimension-5 quark-gluon mixed condensate, and the power corrections due to the dimension-6 vacuum condensates. We find that the new radiative corrections significantly improve stability of the corresponding Borel sum rules, modifying the values of λE,H. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0094243X
- Volume :
- 1388
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- AIP Conference Proceedings
- Publication Type :
- Conference
- Accession number :
- 66823040
- Full Text :
- https://doi.org/10.1063/1.3647413