Raising the SUSY-breaking scale in a Goldstone-Higgs model

Tommi Alanne, Heidi Rzehak, Francesco Sannino*, Anders Eller Thomsen

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Abstrakt

We show that by combining the elementary Goldstone-Higgs scenario and supersymmetry it is possible to raise the scale of supersymmetry breaking to several TeVs by relating it to the spontaneous-symmetry-breaking one. This is achieved by first enhancing the global symmetries of the super-Higgs sector to SU(4) and then embedding the electroweak sector and the Standard Model (SM) fermions. We determine the conditions under which the model achieves a vacuum such that the resulting Higgs is a pseudo-Goldstone boson (pGB). The main results are: The supersymmetry-breaking scale is identified with the spontaneous-symmetry-breaking scale of SU(4) which is several TeVs above the radiatively induced electroweak scale; intriguingly the global symmetry of the Higgs sector predicts the existence of two super-Higgs multiplets with one mass eigenstate playing the role of the pseudo-Goldstone Higgs; the symmetry-breaking dynamics fixes tanβ = 1 and requires a supplementary singlet chiral superfield. We finally discuss the spectrum of the model that now features the superpartners of the SM fermions and gauge bosons in the multi-TeV range.

OriginalsprogEngelsk
Artikelnummer1750143
TidsskriftModern Physics Letters A
Vol/bind32
Udgave nummer27
Antal sider13
ISSN0217-7323
DOI
StatusUdgivet - 2017

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