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Sep 7, 2014 at 13:02 vote accept Phizzy
Sep 6, 2014 at 16:56 comment added Siva Might be a little too simplistic, but here's a blog post I wrote. If you understand what a "gauge-covariant derivative" is, you can make sense of the treatment in almost any textbook. You could (for eg) have a look at section IV.6 in Zee's book QFT in a nutshell, or almost any QFT notes you find online.
Sep 6, 2014 at 16:51 history edited Siva CC BY-SA 3.0
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Sep 6, 2014 at 14:18 comment added Phizzy 2b was just me being unclear, your answer for 2 sorted that one out! Can you recommend any literature I can read? If possible, something edging on laymen's terms as I am engineering educated, not physics!
Sep 6, 2014 at 4:31 history answered Siva CC BY-SA 3.0