Small Q balls
arXiv:hep-th/9704073 · doi:10.1016/S0370-2693(97)00582-0
Abstract
We develop an adequate description of non-topological solitons with a small charge, for which the thin-wall approximation is not valid. There is no classical lower limit on the charge of a stable Q-ball. We examine the parameters of these small-charge solitons and discuss the limits of applicability of the semiclassical approximation.
10 pages, latex, epsf, 2 figures included