Gauge Coupling Unification in the Exceptional Supersymmetric Standard Model

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dc.creatorKing, S. F.
dc.creatorMoretti, S.
dc.creatorNevzorov, R.
dc.date2007-01-09
dc.date2007-04-19
dc.date.accessioned2026-07-07T11:02:33Z
dc.date.available2026-07-07T11:02:33Z
dc.descriptionWe consider the renormalisation group flow of gauge couplings within the so-called exceptional supersymmetric standard model (E$_6$SSM) based on the low energy matter content of 27 dimensional representations of the gauge group $E_6$, together with two additional non-Higgs doublets. The two--loop beta functions are computed, and the threshold corrections are studied in the E$_6$SSM. Our results show that gauge coupling unification in the E$_6$SSM can be achieved for phenomenologically acceptable values of $α_3(M_Z)$, consistent with the central measured low energy value, unlike in the minimal supersymmetric standard model (MSSM) which, ignoring the effects of high energy threshold corrections, requires significantly higher values of $α_3(M_Z)$, well above the experimentally measured central value.
dc.description15 pages, 1 figure, references added, section 4 expanded, table added
dc.identifierhttps://arxiv.org/abs/hep-ph/0701064
dc.identifierhttp://arxiv.org/abs/hep-ph/0701064
dc.identifierPhys.Lett.B650:57-64,2007
dc.identifierdoi:10.1016/j.physletb.2007.04.061
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188288
dc.subjectHigh Energy Physics - Phenomenology
dc.titleGauge Coupling Unification in the Exceptional Supersymmetric Standard Model
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