Heavy-light current-current correlators
High Energy Physics - Lattice
2012-08-27 v1
Abstract
The current-current correlator method has been used successfully to obtain very accurate results for quark masses and the coupling alpha_s. The calculations were done using Highly Improved Staggered Quarks (HISQ) and heavy-heavy meson correlators. We now extend this work to the significantly more challenging heavy-light case, reporting the first results here. The aim is to determine nonperturbative Z factors for NRQCD heavy-light currents, but first we test the method in the HISQ case where Z=1.
Keywords
Cite
@article{arxiv.1011.1208,
title = {Heavy-light current-current correlators},
author = {Jonna Koponen and Christine T. H. Davies and Kent Hornbostel and Eduardo Follana and G. Peter Lepage and Craig McNeile and Junko Shigemitsu and Matthias Steinhauser},
journal= {arXiv preprint arXiv:1011.1208},
year = {2012}
}
Comments
7 pages. Presented at the XXVIII International Symposium on Lattice Field Theory (Lattice 2010), June 14-19 2010, Villasimius, Italy