Effective cross section of fuzzy dark matter halos

@article{Bak2020EffectiveCS,
  title={Effective cross section of fuzzy dark matter halos},
  author={Dongsu Bak and Jae-weon Lee and Sangnam Park},
  journal={Journal of the Korean Physical Society},
  year={2020},
  volume={79},
  pages={582 - 588}
}
We numerically study the movement of two colliding fuzzy dark matter solitons without explicit self-interaction and find the effective cross section of dissipative change in velocity. The cross section turns out to be inversely proportional to the velocity cubed, and we present its analytic interpretation. Using the result we roughly estimate spatial offsets during head-on collisions of two fuzzy dark matter halos, which can be related to the spatial offsets between stars and dark matter in… 
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