Determination of the b-mass using renormalon cancellation
نویسنده
چکیده
Methods of Borel integration to calculate the binding ground energies and mass of bb̄ quarkonia are presented. The methods take into account the leading infrared renormalon structure of the ”soft” binding energy E(s) and of the quark pole masses mq , and the property that the contributions of these singularities in M(s) = 2mq +E(s) cancel. The resummation formalisms are applied to quantities which do not involve renormalon ambiguity, such as MS mass mq and αs(μ).
منابع مشابه
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تاریخ انتشار 2008