Non-perturbative tests of Heavy Quark Effective Theory

@inproceedings{Heitger2009NonperturbativeTO,
  title={Non-perturbative tests of Heavy Quark Effective Theory},
  author={Jochen Heitger},
  year={2009}
}
  • Jochen Heitger
  • Published 2009
We consider QCD with one massless quark and one heavy quark in a finite volume of linear extent L0 ≈ 0.2 fm. In this situation, HQET represents an expansion in terms of 1/z = 1/(mL0), which we test by a non-perturbative computation of quenched current matrix elements and energies, taking the continuum limit of lattice results. These are seen to approach the corresponding renormalization group invariant matrix elements of the static effective theory as the quark mass becomes large. We are able… CONTINUE READING