- #1
Reggaerules
- 9
- 0
In equation (2.5.47),
I am getting
U(R(\hat p) = e^{+i \phi J_3} e^{+i \theta J_2}
Instead of the "-" signs in the exponential. This makes a phase difference under parity and time reversal of a massless particle.
Is this one of the active rotation vs. passive rotation problem? If so, it is not clear to me.
Oops, I think, the problem may be with (2.4.27)
I am getting
U(R(\hat p) = e^{+i \phi J_3} e^{+i \theta J_2}
Instead of the "-" signs in the exponential. This makes a phase difference under parity and time reversal of a massless particle.
Is this one of the active rotation vs. passive rotation problem? If so, it is not clear to me.
Oops, I think, the problem may be with (2.4.27)
Last edited: