Decoupling of charm beyond leading order
High Energy Physics - Lattice
2018-04-18 v1 High Energy Physics - Phenomenology
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.
Cite
@article{arxiv.1710.07590,
title = {Decoupling of charm beyond leading order},
author = {Francesco Knechtli and Tomasz Korzec and Björn Leder and Graham Moir},
journal= {arXiv preprint arXiv:1710.07590},
year = {2018}
}
Comments
8 pages, 4 figures. Proceedings from the 35th International Symposium on Lattice Field Theory (Lattice2017), Granada, Spain