Numerical Study of Q-Ball Formation in Gravity Mediation

作者：Hiramatsu Takashi^*; Kawasaki Masahiro; Takahashi Fuminobu

来源：Progress of Theoretical Physics - Supplement, 2011, (190): 229-238.

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 Q(peak)(3D) similar or equal to 1.9 x 10(-2)(vertical bar Phi(in)vertical bar/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.

• 出版日期2011