ANIRBAN KUNDU
Present address: Theoretical Physics Group, Tata Institute of Fundamental Research, Bombay-400 005, India.
Theory Group, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Calcutta-700 064, India
BISWARUP MUKHOPADHYAYA
Mehta Research Institute, 10 Kasturba Gandhi Marg, Allahabad-211 002, India

Received 20 February 1996

We have investigated some phenomenological aspects of an SU(2) × U(1) scenario where scalars belonging to arbitrary representations of SU(2) are involved in electroweak symmetry breaking. The resulting interaction terms are derived. Some constraints are obtained on the arbitrary scalar sector from the requirement of tree-level unitarity in longitudinal gauge boson scattering. We also show that there is a remarkable complimentarity between the constraints on a general structure from the ρ parameter and those from precision measurement of the vertex. Finally, some salient features about the production of such Higgs bosons in e⁺e⁻ collision are discussed.