A precision constraint on multi-Higgs-doublet models
Copyright policy )A precision constraint on multi-Higgs-doublet models
We derive a general expression for Delta rho (or, equivalently, for the oblique parameter T) in the SU(2) x U(1) electroweak model with an arbitrary number of scalar SU(2) doublets, with hypercharge +-1/2, and an arbitrary number of scalar SU(2) singlets. The experimental bound on Delta rho constitutes a strong constraint on the masses and mixings of the scalar particles in that model.
19 pages, 2 figures, part of the introduction rewritten, small changes in the bibliography, one reference added
- Bergen University College Norway
- University of Bergen Norway
- University of Vienna Austria
- University of Bergen
- University of Lisbon Portugal
High Energy Physics - Phenomenology, 103036 Theoretical physics, High Energy Physics - Phenomenology (hep-ph), 103036 Theoretische Physik, FOS: Physical sciences
High Energy Physics - Phenomenology, 103036 Theoretical physics, High Energy Physics - Phenomenology (hep-ph), 103036 Theoretische Physik, FOS: Physical sciences
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