Study of 1/m corrections in HQET
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Abstract
We report our exploratory study on the matching condition of HQET with QCD including 1/m corrections. We introduce a new observable from the dependence of the heavy-light effective energy on the twisted boundary condition parameter $\theta$, which could be used to match the kinetic term $\vec{D}^2/(2m)$. Carrying out quenched QCD simulations for fixed lattice spacing in small volumes with O(a)-improved Wilson fermions, we study the 1/m dependence of this observable, from which the static limit and 1/m coefficient can be extracted. We also compare our preliminary result with HQET.
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This publication has 13 references indexed in Scilit:
- Effective heavy-light meson energies in small-volume quenched QCDJournal of High Energy Physics, 2004
- Non-perturbative renormalization of the static axial current in quenched QCDNuclear Physics B, 2003
- O(a)-improved quark action on anisotropic lattices and perturbative renormalization of heavy-light currentsPhysical Review D, 2001
- Flavor symmetry and the static potential with hypercubic blockingPhysical Review D, 2001
- Non-perturbative quark mass renormalization in quenched lattice QCDNuclear Physics B, 1999
- Non-perturbative O(a) improvement of lattice QCDNuclear Physics B, 1997
- Chiral symmetry and O(a) improvement in lattice QCDNuclear Physics B, 1996
- Reparameterisation invariance constraints on heavy particle effective field theoriesPhysics Letters B, 1992
- Static effective field theory: correctionsPhysics Letters B, 1990
- The static quark effective theoryNuclear Physics B, 1990