Pati-Salam version of subcritical hybrid inflation
Pati-Salam version of subcritical hybrid inflation
复制标题
Pati-Salam 版本的亚临界混合膨胀
DOI：
10.1103/physrevd.93.095003
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发表时间：
2016
影响因子：
5
通讯作者：
S. Raby
中科院分区：
文献类型：
--
作者：
Charles Bryant;S. Raby
本文提出了一个具有Pati-Salam(PS)对称群的亚临界混合暴胀模型。膨胀场和瀑布场都有助于通货膨胀的必要的$e-折叠，而只有瀑布场自发地打破PS，因此在通货膨胀期间产生的单极子在通货膨胀时期被稀释。该模型能够产生与最新的BICEP2/Keck和Planck数据一致的张量标量比$rl0.09$，以及与Planck数据一致的标量密度微扰和光谱指数${n}{S}$。对于参数的特定值，我们得到$r=0.084$和${n}_{S}=0.0963$。充气过程中的能量密度与PS破裂标度${v}_{\mathm{PS}}$直接相关。该模型还引入了一个${\mathbb{Z}}_{4}^{R}$对称性，该对称性可以解决数学问题，并抑制了5维质子衰变算符，留下了精确的$R$宇称。最后，该模型允许具有${D}_{4}$族对称性的完整的三族扩展，它再现了低能量精度的电场弱和大型强子对撞机数据。
In this paper we present a model of subcritical hybrid inflation with a Pati-Salam (PS) symmetry group. Both the inflaton and waterfall fields contribute to the necessary $e$-foldings of inflation, while only the waterfall field spontaneously breaks PS hence monopoles produced during inflation are diluted during the inflationary epoch. The model is able to produce a tensor-to-scalar ratio, $rl0.09$ consistent with the latest BICEP2/Keck and Planck data, as well as scalar density perturbations and spectral index, ${n}_{s}$, consistent with Planck data. For particular values of the parameters, we find $r=0.084$ and ${n}_{s}=0.0963$. The energy density during inflation is directly related to the PS breaking scale, ${v}_{\mathrm{PS}}$. The model also incorporates a ${\mathbb{Z}}_{4}^{R}$ symmetry which can resolve the $\ensuremath{\mu}$ problem and suppress dimension 5 operators for proton decay, leaving over an exact $R$ parity. Finally the model allows for a complete three-family extension with a ${D}_{4}$ family symmetry which reproduces low energy precision electroweak and LHC data.
衡量 SUSY GUT 中的非单重态膨胀
影响因子：
5.4
作者：
Antusch S
通讯作者：
Antusch S