Inflation and pseudo-Goldstone Higgs boson

Inflation and pseudo-Goldstone Higgs boson
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暴胀和伪戈德斯通希格斯玻色子

DOI:
10.1103/physrevd.95.035004
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发表时间:
2017
期刊:
影响因子:
5
通讯作者:
Alanne T
Alanne T
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Alanne T

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我们认为在一个模型框架内的希格斯玻色子出现的伪戈德斯通玻色子与全球对称性的破坏在一个规模显着大于电弱的。我们表明,在这样一个模型中的标量自耦合可以参数化抑制,因此,非最小的引力耦合可以是一阶或更少,而模型的暴胀预测仍然与精确的宇宙学观测兼容。此外,在我们研究的模型中,电弱标度的存在完全是由于暴胀子场。因此,我们的模型表明,暴胀和低能粒子现象可能比迄今为止所假设的更为复杂。
We consider inflation within a model framework where the Higgs boson arises as a pseudo-Goldstone boson associated with the breaking of a global symmetry at a scale significantly larger than the electroweak one. We show that in such a model the scalar self-couplings can be parametrically suppressed and, consequently, the nonminimal couplings to gravity can be of order one or less, while the inflationary predictions of the model remain compatible with the precision cosmological observations. Furthermore, in the model we study, the existence of the electroweak scale is entirely due to the inflaton field. Our model therefore suggests that inflation and low energy particle phenomenology may be more entwined than assumed so far.
最小但非最小的膨胀和电弱对称性破缺
DOI: 10.1088/1475-7516/2016/10/010
发表时间: 2016
影响因子: 6.4
作者:
L. Marzola;A. Racioppi
通讯作者: A. Racioppi