Infrared behavior and fixed points in Landau-gauge QCD.
نویسندگان
چکیده
We investigate the infrared behavior of gluon and ghost propagators in Landau-gauge QCD by means of an exact renormalization group equation. We explain how, in general, the infrared momentum structure of Green functions can be extracted within this approach. An optimization procedure is devised to remove residual regulator dependences. In Landau-gauge QCD this framework is used to determine the infrared leading terms of the propagators. The results support the Kugo-Ojima confinement scenario. Possible extensions are discussed.
منابع مشابه
Infrared behaviour and fixed points in Landau gauge QCD
We investigate the infrared behaviour of gluon and ghost propagators in Landau gauge QCD by means of an exact renormalisation group equation. We explain how, in general, the infrared momentum structure of Green functions can be extracted within this approach. An optimisation procedure is devised to remove residual regulator dependences. In Landau gauge QCD this framework is used to determine th...
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ورودعنوان ژورنال:
- Physical review letters
دوره 93 15 شماره
صفحات -
تاریخ انتشار 2004