8–10 May 2017
University of Pittsburgh
US/Eastern timezone

Covariant diagrams for one-loop matching and SUSY threshold corrections

9 May 2017, 17:30
15m
G-31 (Benedum Hall)

G-31

Benedum Hall

parallel talk SUSY III

Speaker

Zhengkang Zhang (University of Michigan)

Description

Matching a full theory onto an effective field theory by integrating out heavy fields is often useful for connecting low-energy phenomenology to high-scale physics. I introduce a new formulation of one-loop matching in terms of covariant diagrams, which, unlike conventional Feynman diagrams, preserve gauge covariance in intermediate steps and thus simplify calculations. I will show examples of the use of covariant diagrams in computing SUSY threshold corrections, which helps build connection between unification and phenomenology.

Primary author

Zhengkang Zhang (University of Michigan)

Co-author

James Daniel Wells (University of Michigan (US))

Presentation materials