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arXiv · 0711.4022

A precision constraint on multi-Higgs-doublet models

W. Grimus·L. Lavoura·O. M. Ogreid·P. Osland
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Abstract

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.

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W. Grimus, L. Lavoura, O. M. Ogreid, P. Osland. 2008-04-10. A precision constraint on multi-Higgs-doublet models. https://doi.org/10.1088/0954-3899%2F35%2F7%2F075001

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