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Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Kink-antikink collisions in the φ⁶ model
Patrick Dorey1, Kieran Mersh, Tomasz Romanczukiewicz
1Department of Mathematical Sciences, Durham University, United Kingdom.
Abstract:
We study kink-antikink collisions in the one-dimensional nonintegrable scalar φ⁶ model. Although the single-kink solutions for this model do not possess an internal vibrational mode, our simulations reveal a resonant scattering structure, thereby providing a counterexample to the standard belief that the existence of such a mode is a necessary condition for multibounce resonances in general kink-antikink collisions. We investigate the two-bounce windows in detail, and present evidence that this structure is caused by the existence of bound states in the spectrum of small oscillations about a combined kink-antikink configuration.
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