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Particle number lorentz invariant? 
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#19
Apr1714, 03:07 AM

Sci Advisor
P: 1,927

I have a lovehate relationship with Weinberg. His subsection numbering and indexing are very poor  all the more so since his textbook is supposed to be a research reference tome (sigh). You might also be interested in some of the other references in this old thread  they might fill in more of the gaps. (Btw, these don't cover my oblique mention of "interactions vanishing sufficiently fast at asymptotic times". If you want to know about that, I'll have to dig out some other references.) 


#20
Apr1714, 01:56 PM

P: 124

Thank you very much! So appreciated. :)



#21
Apr1714, 03:53 PM

P: 1,857

you may find this reference on fields handy, I often refer to it in my self studies. Tends to help fill in the blanks on numerous articles and textbooks I read with regards to QFT
"Fields" by W.Siegel http://arxiv.org/abs/hepth/9912205 


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