Inflation from a no-scale supersymmetric SU(4)(C) x SU(2)(L) x SU(2)(R) model

doi:10.1103/PhysRevD.98.023538

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	Inflation from a no-scale supersymmetric SU(4)(C) x SU(2)(L) x SU(2)(R) model
	Ahmed, W ; Karozas, A 1
刊名	PHYSICAL REVIEW D
	2018
卷号	98 期号:2 页码:23538
关键词	STANDARD MODEL COSMOLOGY UNIVERSE SUPERGRAVITY FLATNESS HORIZON ROAD
ISSN号	2470-0010
DOI	10.1103/PhysRevD.98.023538
英文摘要	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.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/22853]
专题	理论物理研究所_理论物理所1978-2010年知识产出
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
推荐引用方式 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.