Title of article
QCD sum rules for the double ratio (fBs/fBd)/(fDs/fDd) in HQET
Author/Authors
Tao Huang، نويسنده , , Zuo-Hong Li، نويسنده , , Chuan-Wang Luo، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1996
Pages
5
From page
451
To page
455
Abstract
The double ratio (fBs/fBd)/(fDs/fDd) is calculated by QCD sum rules in heavy quark effective theory (HQET), both numerically and analytically. Our expression for the double ratio shows explicitly the dependence on the light quark masses, the heavy quark symmetry breaking and the vacuum condensates. The numerical result favors the double ratio to be a little greater than 1.
Journal title
PHYSICS LETTERS B
Serial Year
1996
Journal title
PHYSICS LETTERS B
Record number
907704
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