On General Axial Gauges for QCD
نویسندگان
چکیده
General Axial Gauges within a perturbative approach to QCD are plagued by 'spurious' propagator singularities. Their regularisation has to face major conceptual and technical problems. We show that this obstacle is naturally absent within a Wilsonian or 'Exact' Renormalisation Group approach and explain why this is so. The axial gauge turns out to be a xed point under the ow, and the universal 1-loop running of the gauge coupling is computed. ECM-UB-PF-98-21 DIAS-STP-98-09
منابع مشابه
ar X iv : h ep - t h / 98 09 02 3 v 1 3 S ep 1 99 8 On General Axial Gauges for QCD ∗
General Axial Gauges within a perturbative approach to QCD are plagued by ’spurious’ propagator singularities. Their regularisation has to face major conceptual and technical problems. We show that this obstacle is naturally absent within a Wilsonian or ’Exact’ Renormalisation Group approach and explain why this is so. The axial gauge turns out to be a fixed point under the flow, and the univer...
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تاریخ انتشار 1999