Abstract

We calculate the one-loop correction to the gluon propagator for a pure Yang-Mills theory with a soft gauge fixing which avoids the problem of Gribov copies. It is found that the propagator reduces, in the limit in which the gauge-fixing parameter $M$ is taken to infinity, to the conventional one in the Landau gauge. The $M$-dependent propagator is then used to check that the gauge dependence disappears when calculating the vacuum expectation value (VEV) of gauge-invariant observables. These two facts are used to discuss how finite results might be obtained, beyond the tree level, for VEV's of gauge-invariant observables.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.