The oblique parameters in multi-Higgs-doublet models
W. Grimus, L. Lavoura, O.M. Ogreid, P. Osland
TL;DR
This paper derives general formulas for electroweak oblique parameters in models with multiple Higgs doublets and singlets, aiding precision tests of extended scalar sectors in particle physics.
Contribution
It provides the first comprehensive expressions for S, T, U, V, W, and X parameters in multi-Higgs-doublet models with arbitrary scalar content.
Findings
General formulas for oblique parameters in extended Higgs models
Applicable to models with any number of doublets and singlets
Facilitates precision electroweak tests of new physics
Abstract
We present general expressions for the oblique parameters S, T, U, V, W, and X in the SU(2)xU(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.
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