Abstract
Axion-like scalar fields and the Lane-Emden (LE) truncation of their periodic potential are analyzed as a toy model of dark matter halos. Then, collisions of the well-known kinks in (1 + 1) spacetime dimensions can be mapped to those of localized lumps of the LE equation. Here, we generalize this mapping to (2 + 1)D or even (3 + 1)D and discuss a challenging intrinsic inelastic effect during relativistic soliton collisions.
Original language | English |
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Pages (from-to) | 93-97 |
Number of pages | 5 |
Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 758 |
DOIs | |
State | Published - 10 Jul 2016 |
Externally published | Yes |
Keywords
- Dark matter
- Dark matter halos
- Galaxy clusters
- Solitons
- Universal axion