- #1
ndung200790
- 519
- 0
In QFT book of Peskin&Schroeder writing(page 252,section 7.5Renormalization of electric Charge):
(e^{2}-e^{2}_{0})/e^{2}_{0}=\deltaZ_{3}\approx-2\alpha/3\pi\epsilon.
Where \epsilon is 4-d(d is dim of space-time)
But I think that it is misprint,because bare charge>> observed charge e,then the right formula would be (e^{2}-e^{2}_{0})/e^{2}=...
(e^{2}-e^{2}_{0})/e^{2}_{0}=\deltaZ_{3}\approx-2\alpha/3\pi\epsilon.
Where \epsilon is 4-d(d is dim of space-time)
But I think that it is misprint,because bare charge>> observed charge e,then the right formula would be (e^{2}-e^{2}_{0})/e^{2}=...
