Decoupling of charm beyond leading order
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Peer-reviewed
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Abstract
We study the effective theory of decoupling of a charm quark at low energies. We do this by simulating a model, QCD with two mass-degenerate charm quarks. At leading order the effective theory is a pure gauge theory. By computing ratios of hadronic scales we have direct access to the power corrections in the effective theory. We show that these corrections follow the expected leading behavior, which is quadratic in the inverse charm quark mass.
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Keywords
hep-lat, hep-lat, hep-ph
Journal Title
EPJ Web of Conferences
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Journal ISSN
2101-6275
2100-014X
2100-014X
Volume Title
175
Publisher
EDP Sciences