Speaker
Yi-Lei Tang
(中山大学)
Description
The Nielsen identity is crucial for the gauge dependence of various observables associated with the effective potential. Usually when calculated up to a definite order, it is difficult to acquire a gauge-independent result since the incomplete resummation processes. In the literature, Nielsen identity was usually induced through a path-integral way, while the discussions of the gauge-dependence up to a particular perturbative order were uncommon. In this talk, I would like to anatomize the Feynman diagrams to see how this identity works perturbatively. People can anticipate the origin of the perturbative imbalance of this identity through my calculations.
Primary author
Yi-Lei Tang
(中山大学)
