Correlator of heavy-light quark currents in HQET in the large $β_0$ limit
Andrey G. Grozin
Abstract
The perturbative contribution to the correlator of two heavy-light quark currents in HQET expanded in light-quark masses up to quadratic terms is calculated at the leading order in $1/β_0$. Ultraviolet and infrared renormalon poles of Borel images of the Wilson coefficients are discussed.