The Ward identity for broken scale invariance in n dimensions is shown to be the equation obtained by dimensional analysis. Renormalizing and taking the limt n → 4 allows extraction of the anomaly at n=4. This is found to give either the renormalization group equation or the Callan-Symanzik equation, depending on the renormalization preseription used. Thus, the identity of the two equations is manifest.
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- Nuclear and High Energy Physics
- Astronomy and Astrophysics