Recent content by PiepsNYC

Thanks, Bill_K. So γμψμ=0 is imposed from the beginning, but how do I know that just the Spin 1/2 components are eliminated? Sorry but I got stuck with this question. I want (to try) to calculate just the equations of motion from the Lagrangian. Should this constrain be applied in any way...

Thanks, Bill_K! As I understand a Spin 3/2 particle has 8 components for Spin 1/2, up and down, E>0 and E<0 (that would be 4) and 4 more for Spin 3/2. Is this true? So my question is: where do the other 8 come from? Is this just a mathematical issue? And shouldn't be the contributions of the...

Hi there, I've been trying to understand the theory to descibe the delta(1232) resonance but I'm stuck... hope you guys could help me. After reading several papers, the following questions arose: 1. How do I get (mathematically) the spinor respresentation (1/2,0)+(1,1/2)+(0,1/2)+(1/2,1)...