Periodic Instanton Bifurcations and Thermal Transition Rate

Preprint

4 April 1997

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9704242

Abstract

It is shown that periodic instanton solutions may have bifurcations which qualitatively change the behaviour of the finite temperature transition rate. These bifurcations are studied numerically in a quantum mechanical model and in the massive two-dimensional sigma model with the Skyrme term. General rules which determine the behaviour of periodic instantons near bifurcations are derived and applied to the Electroweak Theory.

Keywords

INSTANTONS NEAR BIFURCATIONS
CHANGE THE BEHAVIOUR
THERMAL TRANSITION
PERIODIC INSTANTON
TRANSITION RATE
SIGMA MODEL

All Related Versions

Version 1, 1997-04-04, ArXiv
Published version: Physics Letters B, 406 (1-2), 76.

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