The stealthy Higgs model at future Linear Colliders

Abstract

We investigate the influence of scalar gauge singlets on Higgs signals at a linear collider. These lead to a large invisible decay width of the Higgs. We find that for high luminosities ($500-1000f{b}^{-1}$) one can essentially cover the allowed parameter range of the model.

Comments: 5 pages, 3 eps-figures included