Advertisement

Beyond the Classical Approximation

  • Carlo M. Becchi
  • Giovanni Ridolfi
Chapter
Part of the UNITEXT for Physics book series (UNITEXTPH)

Abstract

We have seen in Chap.  4 that physical transition amplitudes correspond to amputated connected diagrams with a given number of external lines. In general, these diagrams contain loops as discussed in Sect.  4.5. Following the Feynman rules given in Chap.  4, a generic connected diagram can be built as a tree diagram whose vertices are either point-like, or sub-diagrams with loops. We shall call these vertices effective vertices: an effective vertex is a sub-diagram that cannot be broken into two parts cutting a single internal line.

Keywords

Higgs Mass Goldstone Boson Vacuum Polarization External Line Gauge Choice 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.University of GenovaGenovaItaly

Personalised recommendations