Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Most textbooks on quantum field theory never mention dispersion relations at all. Where can one learn about dispersion relations for S-matrices?

share|cite|improve this question

Bjorken & Drell's QFT book. It is old but therefore strong on this point.

share|cite|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.