Infrared Regularization of Yang-Mills Theories
Alberto Blasi, Nicola Maggiore
TL;DR
This paper introduces an infrared regulator in Yang-Mills theories via a mass term, demonstrating that the modified theory remains multiplicatively renormalizable in a covariant gauge.
Contribution
It presents a novel infrared regularization method for Yang-Mills theories and proves its renormalizability at all orders.
Findings
The mass term acts as an effective infrared regulator.
The theory maintains multiplicative renormalizability.
The Slavnov identity holds at all orders with the new regulator.
Abstract
We introduce an infrared regulator in Yang--Mills theories under the form of a mass term for the nonabelian fields. We show that the resulting action, built in a covariant linear gauge, is multiplicatively renormalizable by proving the validity at all orders of the Slavnov identity defining the theory.
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