Oneloop calculation of mass dependent O(α) improvement coefficients for the relativistic heavy quarks on the lattice
Abstract
We carry out the oneloop calculation of mass dependent 0(a) improvement coefficients in the relativistic heavy quark action recently proposed, employing the ordinary perturbation theory with the fictitious gluon mass as an infrared regulator. We also determine renormalization factors and improvement coefficients for the axialvector current at the oneloop level. It is shown that the improvement coefficients are infrared finite at the oneloop level if and only if the improvement coefficients in the action are properly tuned at the tree level.
 Publication:

Nuclear Physics B Proceedings Supplements
 Pub Date:
 March 2004
 DOI:
 10.1016/S09205632(03)025799
 arXiv:
 arXiv:heplat/0310001
 Bibcode:
 2004NuPhS.129..352A
 Keywords:

 High Energy Physics  Lattice
 EPrint:
 Lattice2003(improve), 3 pages