Take the 2-minute tour ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free, no registration required.

How is the term "Born level" usually defined, e.g. in talking about the $pp\to Z/\gamma^*\to e^+e^-$ cross section at Born level?

share|improve this question
"Born level" is a linguistic mutation of "Born approximation" and "Tree-level". –  Qmechanic Feb 21 '13 at 14:17
Is "Born approximation" in this lingua a synonym for "Tree-level" or something in addition? –  user21223 Feb 21 '13 at 15:47

Your Answer


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

Browse other questions tagged or ask your own question.