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Ahmed, W; Karozas, A1
Inflation from a no-scale supersymmetric SU(4)(C) x SU(2)(L) x SU(2)(R) model
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordSTANDARD MODEL COSMOLOGY UNIVERSE SUPERGRAVITY FLATNESS HORIZON ROAD
AbstractWe study inflation in a supersyrnrnetric Pati-Salam model driven by a potential generated in the context of no-scale supergravity. The Pati-Salam gauge group SU(4)(C) x SU(2)(L) x SU(2)(R) is supplemented with a Z(2) symmetry. Spontaneous breaking via the SU(4) adjoint leads to the left-right symmetric group. Then the SU(2)R breaks at an intermediate scale and the inflaton is a combination of the neutral components of the SU (2) doublets. We discuss various limits of the parameter space, and we show that consistent solutions with the cosmological data for the spectral index n(s) and the tensor-to-scalar ratio r are found for a wide range of the parameter space of the model. Regarding the latter, which is a canonical measure of primordial gravity waves, we find that r similar to 10(-3) - 10(-2). An alternative possibility where the adjoint scalar field S has the role of the intlaton is also discussed.
2018
ISSN2470-0010
Volume98Issue:2Pages:23538
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.98.023538
Indexed BySCIE
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22853
CollectionSCI期刊论文
Affiliation1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
2.Univ Ioannina, Div Theory, Dept Phys, GR-45110 Ioannina, Greece
Recommended Citation
GB/T 7714
Ahmed, W,Karozas, A. Inflation from a no-scale supersymmetric SU(4)(C) x SU(2)(L) x SU(2)(R) model[J]. PHYSICAL REVIEW D,2018,98(2):23538.
APA Ahmed, W,&Karozas, A.(2018).Inflation from a no-scale supersymmetric SU(4)(C) x SU(2)(L) x SU(2)(R) model.PHYSICAL REVIEW D,98(2),23538.
MLA Ahmed, W,et al."Inflation from a no-scale supersymmetric SU(4)(C) x SU(2)(L) x SU(2)(R) model".PHYSICAL REVIEW D 98.2(2018):23538.
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