Phenomenological aspects of supersymmetric extensions of the Standard Model

Cold Dark Matter in the SE$_6$SSM

“…The exceptional supersymmetric standard model (E 6 SSM) [2,3] (for the review, see Ref. [4,5]) is the U(1) N extension of the MSSM, that corresponds to θ E 6 = arctan √ 15. It implies that near the GUT scale U(1)…”