Recent content by qaok

2. - Solved.

I was reading a gauge field theory book and was told to refer to Quigg's Gauge Theories of the Strong, Weak, and Electromagnetic Interactions ch 9.2 The SU(5) Model, so I did not start from the first page of Quigg's book. In page 277, he started from Q = T3 + K To, where T3 is a generator...

I thought p was a vector, but now I realize that it is not. So the trace makes sense.

I didn't know that (Γ_J)^2 = ±I. So now the inverse of Γ_J can be found.

Hi, Hope it's the right forum for this post. I am doing honours year physics in Australia. Never have I felt so frustrated and overwhelmed. Is anyone in Australia willing to help me (mainly in quantum field theory and quantum mechanics)? I've been asking several tutor agencies but could...

Homework Statement I was asked to find Tr q (p + m) q (p + m) Homework Equations Tr p q = 4pq The Attempt at a Solution If I expand it as Tr (p q p q + m q p q + m q q p + (m^2)(q)^2 ), although Tr Π(odd number of gamma matrices) = 0, since q p q and similar terms are not square...

Homework Statement Any spinor matrix can be expressed in a set of 16 linearly independent matrices. In the lecture the 16 Γ_J matrices (J=1 to 16) given are I, γ^0,1,2,3, σ^μυ, (γ^μ)(γ_5), iγ_5. I was asked to express M = (σ_μυ)(γ_5), (σ_μυ)(σ^μυ), (γ^α)(σ_μυ)(γ_α) in terms of the 16...