Large scale structure from the Higgs fields of the supersymmetric standard model
Large scale structure from the Higgs fields of the supersymmetric standard model
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超对称标准模型希格斯场的大尺度结构
DOI：
10.1103/physrevd.67.103516
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发表时间：
2002
影响因子：
5
通讯作者：
S. King
中科院分区：
文献类型：
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作者：
M. Bastero;V. D. Clemente;S. King
我们提出了一种曲率机制的替代实现，它不依赖于与暴胀动力学解耦的晚期衰减标量来产生曲率扰动。在我们的机制中，超对称希格斯标量与混合暴胀模型中的暴胀相耦合，这允许将希格斯场的等曲率扰动转换为在再加热过程中观测到的大尺度结构的曲率扰动。我们讨论了一个显式模型来实现这种机制，其中？希格斯超势中的项是由单重态场的真空期望值膨胀后产生的。该模型的主要预测是光谱指数与单位（|n-1|?0.1）有明显偏差。我们还预计在中性微子和重子中会有残留的等曲率扰动，但不会明显偏离高斯性，也不会在CMB频谱中观察到重力波的影响。
We propose an alternative implementation of the curvaton mechanism for generating the curvature perturbations which does not rely on a late decaying scalar decoupled from inflation dynamics. In our mechanism the supersymmetric Higgs scalars are coupled to the inflaton in a hybrid inflation model, and this allows the conversion of the isocurvature perturbations of the Higgs fields to the observed curvature perturbations responsible for large scale structure to take place during reheating. We discuss an explicit model which realizes this mechanism in which the ? term in the Higgs superpotential is generated after inflation by the vacuum expectation value of a singlet field. The main prediction of the model is that the spectral index should deviate significantly from unity, |n-1|?0.1. We also expect relic isocurvature perturbations in neutralinos and baryons, but no significant departures from Gaussianity and no observable effects of gravity waves in the CMB spectrum.
解决暴胀宇宙中超对称轴子模型的宇宙学问题
DOI：
--
发表时间：
2008
期刊：
Physical Review D 77
影响因子：
--
作者：
M. Kawasaki;K. Nakayama
通讯作者：
K. Nakayama