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题名: No-scale ripple inflation revisited
作者: Li, TJ;  Li, ZJ;  Nanopoulos, DV
刊名: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
出版日期: 2014
期号: 4, 页码:18
关键词: SUPERGRAVITY ;  MODELS
学科分类: Physics
DOI: 10.1088/1475-7516/2014/04/018
通讯作者: Li, TJ (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
部门归属: [Li, Tianjun] Chinese Acad Sci, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
英文摘要: We revisit the no-scale ripple inflation model, where no-scale supergravity is modified by an additional term for the inflaton field in the Kahler potential. This term not only breaks one SU(N, 1) symmetry explicitly, but also plays an important role for inflation. We generalize the superpotential in the no-scale ripple inflation model slightly. There exists a discrete Z(2) symmetry/parity in the scalar potential in general, which can be preserved or violated by the non-canonical nomalized inflaton kinetic term. Thus, there are three inflation paths: one parity invariant path, and the left and right paths for parity violating scenario. We show that the inflations along the parity invariant path and right path are consistent with the Planck results. However, the gavitino mass for the parity invariant path is so large that the inflation results will be invalid if we consider the inflaton supersymmetry breaking soft mass term. Thus, only the inflation along the right path gives the correct and consistent results. Notably, the tensor-to-scalar ratio in such case can be large, with a value around 0.05, which may be probed by the future Planck experiment.
资助者: Natural Science Foundation of China [10821504, 11075194, 11135003, 11275246]; National Basic Research Program of China (973 Program) [2010CB833000]; DOE [DE-FG03-95-Er-40917]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000334496500018
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15797
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Recommended Citation:
Li, TJ,Li, ZJ,Nanopoulos, DV. No-scale ripple inflation revisited[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2014(4):18.
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