Title of article :
Asymptotics of the perturbative series for fB∗/fB Original Research Article
Author/Authors :
F. Campanario، نويسنده , , A.G. Grozin، نويسنده , , T. Mannel، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Abstract :
We investigate the structure of the leading IR renormalon singularity in the QCD/HQET matching coefficients for heavy–light quark currents beyond the large-β0 limit. From this result, we derive the large-order behaviour of the perturbative series for these coefficients, and for ratios of meson matrix elements, such as fB∗/fB.
Keywords :
Renormalons , Heavy Quark Effective Theory
Journal title :
Nuclear Physics B
Journal title :
Nuclear Physics B
