Numerical study of Q-ball formation in gravity mediation

Takashi Hiramatsu, Masahiro Kawasaki, Fuminobu Takahashi

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)

Abstract

We study Q-ball formation in the expanding universe on 1D, 2D and 3D lattice simulations. We obtain detailed Q-ball charge distributions, and find that the distribution is peaked at Q3Dpeak ≈ 1.9 × 10-2(|Φin|/m)2, which is greater than the existing result by about 60%. Based on the numerical simulations, we discuss how the Q-ball formation proceeds. Also we make a comment on possible deviation of the charge distributions from what was conjectured in the past.

Original languageEnglish
Article number008
JournalJournal of Cosmology and Astroparticle Physics
Volume2010
Issue number6
DOIs
Publication statusPublished - 2010
Externally publishedYes

Keywords

  • cosmology of theories beyond the SM
  • physics of the early universe
  • supersymmetry and cosmology

ASJC Scopus subject areas

  • Astronomy and Astrophysics

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