Corpus ID: 224703490

Oscillons of Axion-Like Particle: Mass distribution and power spectrum

  title={Oscillons of Axion-Like Particle: Mass distribution and power spectrum},
  author={M. Kawasaki and Wakutaka Nakano and H. Nakatsuka and Eisuke Sonomoto},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
  • M. Kawasaki, Wakutaka Nakano, +1 author Eisuke Sonomoto
  • Published 2020
  • Physics
  • arXiv: Cosmology and Nongalactic Astrophysics
  • In string theory, the simultaneous existence of many Axion-Like Particles (ALPs) are suggested over a vast mass range, and a variety of potentials have been developed in the context of inflation. In such potentials shallower than quadratic, the prominent instability can produce localized dense objects, oscillons. Because of the approximate conservation of their adiabatic invariant, oscillons generally survive quite long, maybe up to the current age of the universe in the case of ultra-light… CONTINUE READING
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