Relativistic soliton collisions of axion type dark matter

David Castañeda Valle, Eckehard W. Mielke

Research output: Contribution to journalArticle

6 Scopus citations


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 languageEnglish
Pages (from-to)93-97
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
StatePublished - 10 Jul 2016
Externally publishedYes



  • Dark matter
  • Dark matter halos
  • Galaxy clusters
  • Solitons
  • Universal axion

Cite this