Correlator of heavy-light quark currents in HQET in the large β0 limit
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/β0. Ultraviolet and infrared renormalon poles of Borel images of the Wilson coefficients are discussed.
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