Kink-oscillon collisions in phi^6 (triple-well) scalar field theory

Topological and non-topological defects in one dimensional scalar field theories are often mentioned as toy models for more complex cosmic strings and domain wall problems. A classic example is a Klein-Gordon equation with a non-linear phi^4 (double well) or phi^6 (triple well) potential. In such a model, kinks/oscillons represent topological/non-topological solitary solutions. Kinks are known to have a fractal collision structure; kink-oscillon collisions remain largely uninvestigated. We present a numerical study of kink-oscillon collisions in a generalized phi^6 (triple well) model. We also point out some similarities of the solutions inherited from the integrable sine-Gordon model.