Seminar S. Mooij

Speaker: 
S. Mooij
Affiliation: 
Nikhef
Title: 
Goldstone bosons and a dynamical Higgs field
Abstract: 

Higgs inflation uses the gauge variant Higgs field as the inflaton. During inflation the Higgs field is displaced from its minimum, which results in associated Goldstone bosons that are no longer massless. We use the closed-time-path formalism to show that these Goldstone bosons do contribute to the Coleman-Weinberg one-loop potential; hence, the computation in unitary gauge gives incorrect results. Our expression for the one-loop potential is gauge invariant upon using the background equations of motion.

Location: 
0511.0135
Date: 
Tuesday, October 25, 2011 - 12:30 - 13:30