Integrating out gluons in flow equations |
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| Authors: | Christof Wetterich |
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| Affiliation: | 1. Institut für Theoretische Physik, Universit?t Heidelberg, Philosophenweg 16, D-69120, Heidelberg, Germany
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| Abstract: | We present an exact nonperturbative flow equation for the average action for quarks which incorporates the effects of gluon fluctuations. With suitable truncations this allows one to compute effective multi-quark interactions in dependence on an infrared scalek. Our method amounts to integrating out the gluons with momenta larger thank. |
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