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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
发表期刊PHYSICAL REVIEW D
语种英语
关键词STANDARD MODEL COSMOLOGY UNIVERSE SUPERGRAVITY FLATNESS HORIZON ROAD
摘要We 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
卷号98期号:2页码:23538
学科领域Astronomy & Astrophysics ; Physics
学科门类Astronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.98.023538
收录类别SCIE
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22853
专题理论物理所科研产出_SCI论文
作者单位1.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
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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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