论文标题

原始单孔和弦,通胀和重力波

Primordial Monopoles and Strings, Inflation, and Gravity Waves

论文作者

Chakrabortty, Joydeep, Lazarides, George, Maji, Rinku, Shafi, Qaisar

论文摘要

我们考虑在非苏匹马对称$ SO(10)$和$ e_6 $ grand Unified型号中出现的磁性单极和字符串,这些模型会注意量表耦合统一和质子衰减的各种对称性破坏方案。无量纲字符串张力参数$gμ$跨越范围$ 10^{ - 6} -10^{ - 30} $,其中$ g $是牛顿的常数,$μ$是字符串张力。我们展示了如何与质量$ \ sim 10^{13} -10^{14} $ gev和flux $ \ limsSim 2.8 \ times 10^{ - 16} $ $ {\ Mathrm {cm}^{-2}^{ - 2} \ Mathrm {s}^{ - 1} { - 1}} {s rm Math}带有$Gμ\ sim 10^{ - 11} -10^{ - 10} $的宇宙字符串幸存于通货膨胀,并以可观察的水平存在于宇宙中。我们估计了由Coleman-Weinberg潜力驱动的通胀,从宇宙弦中发出的重力波谱。根据通货膨胀率的详细信息,张量与标准比率$ r $ $ r $在0.06美元至0.003美元之间。

We consider magnetic monopoles and strings that appear in non-supersymmetric $SO(10)$ and $E_6$ grand unified models paying attention to gauge coupling unification and proton decay in a variety of symmetry breaking schemes. The dimensionless string tension parameter $Gμ$ spans the range $10^{-6}-10^{-30}$, where $G$ is Newton's constant and $μ$ is the string tension. We show how intermediate scale monopoles with mass $\sim 10^{13}-10^{14}$ GeV and flux $\lesssim 2.8\times 10^{-16}$ ${\mathrm{cm}^{-2}\mathrm{s}^{-1}\mathrm{sr}^{-1}}$, and cosmic strings with $Gμ\sim 10^{-11}-10^{-10}$ survive inflation and are present in the universe at an observable level. We estimate the gravity wave spectrum emitted from cosmic strings taking into account inflation driven by a Coleman-Weinberg potential. The tensor-to-scalar ratio $r$ lies between $0.06$ and $0.003$ depending on the details of the inflationary scenario.

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