Correlators of heavy-light quark currents in HQET: OPE at three loops
K. G. ChetyrkinA. G. Grozin
所有作者
K. G. ChetyrkinA. G. Grozin
文献摘要
Coefficient functions of the operator product expansion of correlators of
HQET heavy–light quark currents are calculated up operators of dimension 4 up
to to 3 loops.