Q-Ball Collisions in the MSSM

Abstract

Collisions of non-topological solitons, Q-balls, are studied in the Minimal Supersymmetric Standard Model in two different cases: where supersymmetry has been broken by a gravitationally coupled hidden sector and by a gauge mediated mechanism at a lower energy scale. Q-ball collisions are studied numerically on a two dimensional lattice for a range of Q-ball charges. Total cross-sections as well as cross-sections for fusion and charge exchange are calculated.

5 pages, 3 figures, to appear in the Proceedings of Strong and Electroweak Matter (SEWM2000), Marseille, France, 14-17 June, 2000