A Heterotic Standard Model

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dc.creatorBraun, Volker
dc.creatorHe, Yang-Hui
dc.creatorOvrut, Burt A.
dc.creatorPantev, Tony
dc.date2005-01-10
dc.date2005-04-25
dc.date.accessioned2026-07-07T10:50:29Z
dc.date.available2026-07-07T10:50:29Z
dc.descriptionWithin the context of the E_8 x E_8 heterotic superstring compactified on a smooth Calabi-Yau threefold with an SU(4) gauge instanton, we show the existence of simple, realistic N=1 supersymmetric vacua that are compatible with low energy particle physics. The observable sector of these vacua has gauge group SU(3)_C x SU(2)_L x U(1)_Y x U(1)_{B-L}, three families of quarks and leptons, each with an additional right-handed neutrino, two Higgs-Higgs conjugate pairs, a small number of uncharged moduli and no exotic matter. The hidden sector contains non-Abelian gauge fields and moduli. In the strong coupling case there is no exotic matter, whereas for weak coupling there are a small number of additional matter multiplets in the hidden sector. The construction exploits a mechanism for ``splitting'' multiplets. The minimal nature and rarity of these vacua suggest the possible theoretical and experimental relevance of spontaneously broken U(1)_{B-L} gauge symmetry and two Higgs-Higgs conjugate pairs. The U(1)_{B-L} symmetry helps to naturally suppress the rate of nucleon decay.
dc.description11+1 pp, typos corrected
dc.identifierhttps://arxiv.org/abs/hep-th/0501070
dc.identifierhttp://arxiv.org/abs/hep-th/0501070
dc.identifierPhys.Lett.B618:252-258,2005
dc.identifierdoi:10.1016/j.physletb.2005.05.007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/184553
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleA Heterotic Standard Model
dc.typetext

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