Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/37099
Type: | Conference paper |
Title: | Gauge-variant propagators and the running coupling from lattice QCD |
Author: | Ilgenfritz, Ernst-Michael Muller-Preussker, Michael Sternbeck, Andre Schiller, A. |
Citation: | Sense of beauty in physics : a volume in honour of Adriano Di Giacomo / M. D'Elia, K. Konishi, E. Meggiolaro, and P. Rossi (eds.): pp.359-368 |
Publisher: | Pisa University Press |
Issue Date: | 2006 |
Series/Report no.: | Didattica e ricerca |
ISBN: | 8884923840 |
School/Discipline: | School of Chemistry and Physics : Physics and Mathematical Physics |
Abstract: | On the occasion of the 70th birthday of Prof. Adriano Di Giacomo we report on recent numerical computations of the Landau gauge gluon and ghost propagators as well as of a non-symmetric MOM-scheme ghost-gluon vertex in quenched and full lattice QCD. Special emphasis is paid to the Gribov copy problem and to the unquenching effect. The corresponding running coupling \alpha_s(q^2) is found and shown to decrease for q^2 \le 0.3 GeV^2 in the infrared limit. No indication for a non-trivial infrared fixed point is seen in agreement with findings from truncated systems of Dyson-Schwinger equations treated on a four-dimensional torus. |
Description: | Also published in: arXiv:hep-lat/0601027v1, 21 Jan 2006: 1-10 |
Description (link): | http://arxiv.org/abs/hep-lat/0601027 |
Appears in Collections: | Physics publications |
Files in This Item:
File | Size | Format | |
---|---|---|---|
hdl_37099.pdf | 258.49 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.