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arXiv 1306.3242hep-phhep-th
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F项混合暴胀在最小超对称SO(10)中是自然的吗?

Is F-term hybrid inflation natural within minimal supersymmetric SO(10)?

Giacomo Cacciapaglia, Mairi Sakellariadou

摘要:

我们研究了F项超对称混合暴胀是否可以以自然的方式嵌入最小SO(10)模型。我们证明了在SO(10)表象的最小集合中,没有一个标准模型对称性的单态能满足标量场扮演暴胀子角色所必需的条件。因此,必须引入一个额外的标量场,然而这可能破坏SO(10)上下文中暴胀的自然性。然而,如果我们增加一个额外的标量场,我们就能够构建一个模型,它可以容纳平坦的方向,同时保持暴胀谷的稳定性。

英文摘要:

We examine whether F-term supersymmetric hybrid inflation can be embedded within the minimal SO(10) model, in a natural way. We show that none of the singlets of the Standard Model symmetries in the minimal set of SO(10) representations can satisfy the conditions which are necessary for a scalar field to play the role of the inflaton. As a consequence, one has to introduce an extra scalar field, which however may spoil the naturalness of inflation within the context of SO(10). Nevertheless, if we add an extra scalar field, we are then able to construct a model that can accommodate flat directions while it preserves the stability of the inflationary valley.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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