False vacuum decay in kink scattering
Abstract
In this work we consider kink-antikink and antikink-kink collisions in a modified ϕ 4 model with a false vacuum characterized by a dimensionless parameter ɛ. The usual ϕ 4 model is recovered for ɛ = 0. We investigate the ɛ ≪ 1 regime where the kink in the presence of false vacuum can be understood as a small deformation of the standard kink for the ϕ 4 model. We show that the attractive interaction between the kink-antikink pair leads to a rich scattering pattern, in some cases delaying considerably the false vacuum decay.
- Publication:
-
Journal of High Energy Physics
- Pub Date:
- October 2018
- DOI:
- 10.1007/JHEP10(2018)192
- arXiv:
- arXiv:1805.00991
- Bibcode:
- 2018JHEP...10..192G
- Keywords:
-
- Solitons Monopoles and Instantons;
- Field Theories in Lower Dimensions;
- Nonperturbative Effects;
- High Energy Physics - Theory
- E-Print:
- 16 pages, 17 figures