文献类型：期刊文献

英文题名：Gauged Q ball in a piecewise parabolic potential

作者：Li, XZ; Hao, JG; Liu, DJ; Chen, G

机构：[1]Shanghai Normal Univ, Dept Phys, Shanghai 200234, Peoples R China;[2]E China Inst Theoret Phys, Shanghai 200237, Peoples R China

年份：2001

卷号：34

期号：7

起止页码：1459

外文期刊名：JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000167346000018)】；

语种：英文

摘要：Q-ball solutions are considered within the theory of a complex scalar field with a gauged U (1) symmetry and a parabolic-type potential. In the thin-walled limit, we show explicitly that there is a maximum size for these objects because of the repulsive Coulomb force. The size of the Q ball will increase with decreasing local minimum of the potential. And when the two minima degenerate, the energy stored within the surface of the Q ball becomes significant. Furthermore, we find an analytic expression for a gauged Q ball, which is beyond the conventional thin-walled limit.