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Evaluate the Klein-Gordon action

  1. Apr 16, 2008 #1
    [SOLVED] Evaluate the Klein-Gordon action

    I'm interested in evaluating the Klein-Gordon action in P&S, p. 287. It goes as follows
    S_0 = \frac{1}{2} \int d^4 x \! \phi \left( - \partial^2 -m^2 \right) \phi + \left(\text{surface term} \right)
    The surface terms drops out, that's fine. I would like to see a detailed calculation of the first part of the integral. Anyone to the rescue?

    Thanks in advance!
  2. jcsd
  3. Apr 16, 2008 #2
    I came to my own rescue, it seems (or rather Mark Srednicki did). For reference, the evaluation is done in his "Quantum Field Theory", p. 55. A draft version may be downloaded from professor Srecnicki's homepage. I'm not allowed to post URL's quite yet, but google his name and you'll find his homepage.
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