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| Format: | Artículo científico |
| Language: | en |
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Sociedade Brasileira de Física
2006
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| Online Access: | https://www.redalyc.org/articulo.oa?id=46403620 |
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Table of Contents:
- The temperature dependence of the QCD running coupling F. M. Steffens Física, Astronomía y Matemáticas Running coupling Finite temperature QCD We study the running of the QCD coupling with the momentum squared (Q2) and the temperature scales inthe high temperature limit (T > Tc), using a mass dependent renormalization scheme to build the RenormalizationGroup Equations. The approach used guaranty gauge invariance, through the use of the Hard Thermal Loopapproximation, and independence of the vertex chosen to renormalize the coupling. In general, the dependenceof the coupling with the temperature is not logarithmical, although in the region Q2 » T2 the logarithm approximationis reasonable. Finally, as known from Debye screening, color charge is screened in the coupling. Thenumber of flavors, however, is anti-screened. 2006 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46403620 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2B Vol.36