2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/47901In many supersymmetric extensions of the Standard Model the spectrum of states contains stable non-topological solitons, Q-balls. If formed in the Early Universe in sufficient amounts, Q-balls now contribute to cold dark matter. We discuss their experimental signatures and astrophysical implications.6 pp., LaTeX, uses axodraw.sty. To appear in Proceedings of XXIII Rencontres de MoriondHigh Energy Physics - Phenomenologytext