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arXiv · 2406.01628

On the extension of the SM through a scalar quadruplet

Darius Jurčiukonis·Luís Lavoura
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Abstract

We consider the extension of the Standard Model (SM) through a scalar quadruplet with hypercharge either $1/2$ or $3/2$; in the first case, we assume $CP$ invariance of the scalar potential (SP). We write down the unitarity conditions on the SP. We use a partly numerical method to find the bounded-from-below conditions on the SP. We determine the masses of the new scalars of the model. We compute the three- and four-Higgs couplings and compare them to the ones of the SM.

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Darius Jurčiukonis, Luís Lavoura. 2024-06-01. On the extension of the SM through a scalar quadruplet. https://arxiv.org/abs/2406.01628

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