DARK-MATTER CONSTRAINTS ON THE PARAMETER SPACE AND PARTICLE SPECTRA IN THE NONMINIMAL SUSY STANDARD MODEL

We investigate the dark matter constraints for the nonminimal SUSY sta ndard model (NMSSM). The cosmologically restricted mass spectra of the NMSSM are compared to the minimal SUSY standard model (MSSM). The dif ferences of the two models concerning the neutralino, sfermion and Hig gs sector are discussed. The dark matter condition leads to cosmologic ally allowed mass ranges for the SUSY particles in the NMSSM: m(sic) < 300 GeV, m(sic) < 300 GeV, 300 GeV < m(sic) < 1900 GeV, 200 GeV < m(s ic) < 1500 GeV, 350 GeV < m((g) over tilde) < 2100 GeV and for the mas s of the lightest scalar Higgs m(sic) < 140 GeV. (C) 1997 Published by Elsevier Science B.V.