Numerical study of Q-Ball formation in gravity mediation

Takashi Hiramatsu, Masahiro Kawasaki, Fuminobu Takahashi

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We study Q-ball formation in the expanding universe on 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
Pages (from-to)229-238
Number of pages10
JournalProgress of Theoretical Physics Supplement
Issue number190
Publication statusPublished - 2011
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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