Variations of the Hidden Sector in a Realistic Intersecting Brane Model

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dc.creatorChen, Ching-Ming
dc.creatorLi, Tianjun
dc.creatorMayes, V. E.
dc.creatorNanopoulos, Dimitri V.
dc.date2007-04-15
dc.date.accessioned2026-07-07T11:56:35Z
dc.date.available2026-07-07T11:56:35Z
dc.descriptionRecently, we discussed the first example of a phenomenologically realistic intersecting D6-brane model. In this model, the gauge symmetry in the hidden sector is USp(2)_1 x USp(2)_2 x USp(2)_3 x USp(2)_4. However, we find that the USp(2)_1 x USp(2)_2 gauge symmetry can be replaced by an U(2)_{12} gauge symmetry, and/or the USp(2)_3 x USp(2)_4 gauge symmetry can be replaced by an U(2)_{34} gauge symmetry since the USp(2)^2 stacks of D6-branes contribute to the same Ramond-Ramond tadpoles as those of the U(2) stacks. Thus, there are three non-equivalent variations of the hidden sector, and the corresponding gauge symmetries are U(2)_{12} x USp(2)_3 x USp(2)_4, U(2)_{34} x USp(2)_1 x USp(2)_2, and U(2)_{12} x U(2)_{34}, respectively. Moreover, we study the hidden sector gauge symmetry breaking, discuss how to decouple the additional exotic particles, and briefly comment on the phenomenological consequences.
dc.descriptionRevTex4, 15 pages, 10 tables
dc.identifierhttps://arxiv.org/abs/0704.1855
dc.identifierhttp://arxiv.org/abs/0704.1855
dc.identifierJ.Phys.G35:095008,2008
dc.identifierdoi:10.1088/0954-3899/35/9/095008
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205590
dc.subjectHigh Energy Physics - Theory
dc.titleVariations of the Hidden Sector in a Realistic Intersecting Brane Model
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