Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Supersymmetry and String Theory

  1. Jun 11, 2008 #1
    I am reading Michael Hines new book, Supersymmetry and String Theory. He keeps referring to "tree-level". What is this?
  2. jcsd
  3. Jun 16, 2008 #2


    User Avatar

    "Tree-level" refers to Feynman diagrams with no loops. That is, 0th order in perturbation theory (h-bar).
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?