Asymmetric scattering between kinks and wobblers

The asymmetric scattering between wobblers and kinks in the standard ϕ4 model is numerically investigated in two different scenarios. First, the collision between wobblers with opposite phases is analyzed. Here, a destructive interference between the shape modes of the colliding wobblers takes place at the impact time. The second scenario involves the scattering between a wobbler and an unexcited kink. In this case the energy transfer from the wobbler to the kink can be examined. The dependence of the final velocities and wobbling amplitudes of the scattered wobblers on the collision velocity and on the initial wobbling amplitude is discussed. Both situations lead to very different fractal structures in the velocity diagrams. •Asymmetric scattering between wobblers in the ϕ4-model is discussed.•The difference between the wobbling phases of wobblers plays an essential role.•Several novel features arising in the velocity diagrams are analytically explained. diagram.