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Effects of the neutrino B-term on the Higgs mass parameters and electroweak symmetry breaking

Yasaman Farzan
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Abstract

To embed the seesaw mechanism in the MSSM, two or three right-handed neutrino supermultiplets, $N_i$, have to be added to the model. In the presence of these new superfields, the soft supersymmetry breaking potential includes a lepton number violating mass term which is known as the neutrino $B$-term, $M B_ν\tilde{N}\tilde{N}/2$. In this paper, we study the effects of $B_ν$ on the Higgs mass parameters. Using the condition for the electroweak symmetry breaking, we derive an upper bound on $B_ν$ which is two orders of magnitude stronger than the previous bounds. We also propose a simple model in which it is natural to have large values of $B_ν$ while the rest of the supersymmetry breaking terms are at the TeV scale or smaller.

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Yasaman Farzan. 2005-02-16. Effects of the neutrino B-term on the Higgs mass parameters and electroweak symmetry breaking. https://doi.org/10.1088/1126-6708%2F2005%2F02%2F025

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