QCD Matching Conditions at Thresholds
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Rodrigo García, Germán Vicente; Santamaria, Arcadi
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Aquest document és un/a article, creat/da en: 1993
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The use of MS-like renormalization schemes in QCD requires an implementation of nontrivial matching conditions across thresholds, a fact often overlooked in the literature. We shortly review the use of these matching conditions in QCD and check explicitly that the prediction for αs(MZ), obtained by running the strong coupling constant from the Mτ scale, does not substantially depend on the exact value of the matching point chosen in crossing the b-quark threshold when the appropriate matching conditions are taken into account. |
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