论文标题

使用不稳定的标准模型潜力的希格斯通货膨胀

Higgs Inflation Using the Unstable Standard Model Potential

论文作者

McDonald, John

论文摘要

标准模型的HIGGS可能不稳定,在$ ϕ <λ\ sim 10^{10} $ gev时变成负面。在这里,我们考虑是否有可能在$ ϕ <λ$的电势稳定区域内将希格斯通货膨胀在稳定区域上。为此,我们向标准模型添加了带标量$χ$的非最低耦合引力扇区。 For an appropriate form for the non-minimal coupling of $χ$, we show that it is possible to have conventional Higgs inflation at small $ϕ< Λ$ if the effective Planck mass in the Jordan frame during inflation is sufficiently small, with a phase transition to $χ\neq 0$ at the end of Higgs inflation which increases the Jordan frame Planck mass to its presently observed value.在爱因斯坦框架中,这对应于通货膨胀结束时对希格斯动力学的抑制和潜在项。我们表明,在膨胀期间,希格斯的通货膨胀的预测并未改变,而希格斯的膨胀则没有改变。因此,可以使用未修改的标准模型的电位来实现希格斯通货膨胀。

It is likely that the Higgs potential of the Standard Model is unstable, turning negative at $ϕ< Λ\sim 10^{10}$ GeV. Here we consider whether it is possible to have Higgs Inflation on the positive stable region of the potential at $ϕ< Λ$. To do this we add a non-minimally coupled induced gravity sector with scalar $χ$ to the Standard Model. For an appropriate form for the non-minimal coupling of $χ$, we show that it is possible to have conventional Higgs inflation at small $ϕ< Λ$ if the effective Planck mass in the Jordan frame during inflation is sufficiently small, with a phase transition to $χ\neq 0$ at the end of Higgs inflation which increases the Jordan frame Planck mass to its presently observed value. In the Einstein frame this corresponds to a suppression of the Higgs kinetic and potential term at the end of inflation. We show that the predictions of Higgs inflation at tree level are unaltered from conventional Higgs Inflation, with the exception of the magnitude of the Higgs field during inflation. Hence Higgs Inflation can be achieved using the potential of the unmodified Standard Model.

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