Talk:Novikov-Shifman-Vainshtein-Zakharov beta function
From Scholarpedia
Reviewer B
I think that this "living review" would be a nice opportunity for a definitive discussion on the origin of the denominator of the NSVZ beta function, which gave rise to a lot of literature and debate.
Moreover, related to this issue, I believe that it would be useful a remark on the relation between "holomorphic" and "canonical" gauge coupling constant, which originates the well known puzzle concerning the absence of evolution of the "canonical" gauge coupling constant below a certain scale.
Under this respect, indeed, the pole of the NSVZ beta function seems to be just a sign of the failure of \alpha as a coupling constant at low energies.
Finally, the Author uses both \alpha and g for the gauge coupling constant. Does He refer to the same coupling constant ?
