Abstract
In this work we consider kink-antikink and antikink-kink collisions in a modified ϕ4 model with a false vacuum characterized by a dimensionless parameter ϵ. The usual ϕ4 model is recovered for ϵ = 0. We investigate the ϵ ≪ 1 regime where the kink in the presence of false vacuum can be understood as a small deformation of the standard kink for the ϕ4 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.
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Gomes, A.R., Simas, F.C., Nobrega, K.Z. et al. False vacuum decay in kink scattering. J. High Energ. Phys. 2018, 192 (2018). https://doi.org/10.1007/JHEP10(2018)192
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DOI: https://doi.org/10.1007/JHEP10(2018)192