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arXiv 1306.6931hep-phastro-ph.COhep-th
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125-126 GeV Higgs的xi-暴胀:双环分析

Higgs xi-inflation for the 125-126 GeV Higgs: a two-loop analysis

Kyle Allison

摘要:

标准模型希格斯场与引力的非最小耦合xi可以引起暴胀,但是需要大的xi,因此导致在Mp/xi处微扰么正性的破坏,这远低于暴胀尺度Mp/sqrt(xi)。我们重新检查希格斯质量在125-126 GeV范围内的拉姆达_eff(μ)运行到普朗克尺度附近的非常小的值,可以显着降低通货膨胀所需的xi值的索赔。利用双圈重整化群方程和Higgs的xi-暴胀的有效势,我们发现常见的暴胀解可以有一个非最小的耦合,小到xi ~ 400,而势不会发展出第二个最小值。我们还发现了一个新的观测允许区域的希格斯xi-通货膨胀与xi ~ 90和不同的通货膨胀的预测,包括一个可观察到的水平的张量标量比r。

英文摘要:

A non-minimal coupling xi of the Standard Model Higgs field to gravity can give rise to inflation, but large xi is required and thus leads to a violation of perturbative unitarity at Mp/xi, which is well below the inflationary scale Mp/sqrt(xi). We re-examine this claim for a Higgs mass in the range 125-126 GeV for which lambda_eff(mu) runs to very small values near the Planck scale and can significantly reduce the value of xi required for inflation. Using the two-loop renormalization group equations and effective potential for Higgs xi-inflation, we find that familiar inflationary solutions can have a non-minimal coupling as small as xi ~ 400 without the potential developing a second minimum. We also find a new observationally allowed region of Higgs xi-inflation with xi ~ 90 and distinct inflationary predictions, including an observable level of the tensor-to-scalar ratio r.

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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