论文标题

转移$μ$ $杂交通货膨胀,重力暗物质和可观察的重力波

Shifted $μ$-hybrid inflation, gravitino dark matter, and observable gravity waves

论文作者

Lazarides, George, Rehman, Mansoor Ur, Shafi, Qaisar, Vardag, Fariha K.

论文摘要

我们研究了基于量规对称$ su(4)_c \ times su(2)_l \ times su(2)_r $的现实模型中的超对称混合膨胀。从MSSM Electroweak Doublet的耦合到量规单线超级场,在Dvali,Lazarides和Shafi之后出现了最小的超对称标准模型(MSSM)$ $ $ $项,从而在Dvali,Lazarides和Shafi之后出现。通过安排$ su(4)_c \ times su(2)_l \ times su(2)_r $ symmetry沿通货膨胀轨迹折断的$ su(4)_c \ times su(2)_l \ times _l \ times _l \ times _l \ times _l \ times _l \ times su(2),从而使原始单孔膨胀了。详细讨论了(上)$μ$耦合,重力质量和通货膨胀后的加热之间的相互作用。我们探索参数空间的区域,这些区域产生了Gravitino暗物质和可观察的重力波,并具有张量与尺度比率$ r \ sim 10^{ - 4} -10^{ - 3} $。

We investigate supersymmetric hybrid inflation in a realistic model based on the gauge symmetry $SU(4)_c \times SU(2)_L \times SU(2)_R$. The minimal supersymmetric standard model (MSSM) $μ$ term arises, following Dvali, Lazarides, and Shafi, from the coupling of the MSSM electroweak doublets to a gauge singlet superfield which plays an essential role in inflation. The primordial monopoles are inflated away by arranging that the $SU(4)_c \times SU(2)_L \times SU(2)_R$ symmetry is broken along the inflationary trajectory. The interplay between the (above) $μ$ coupling, the gravitino mass, and the reheating following inflation is discussed in detail. We explore regions of the parameter space that yield gravitino dark matter and observable gravity waves with the tensor-to-scalar ratio $r \sim 10^{-4}-10^{-3}$.

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