论文标题

踢脚对准:物质不对称的暗物质

Kick-alignment: matter asymmetry sourced dark matter

论文作者

Alonso, Rodrigo, Scholtz, Jakub

论文摘要

我们调查了深色物质丰度是由早期宇宙的Baryon/Lepton不对称来提出的。事实证明,在标准模型中,当地保存的对称性的金石场在Baryon/Lepton数字生成期间经历了踢球。该机制可以被视为未对准的初始条件的动态生成,但对遗物丰度的预测与冻结与冻结的耦合并行相反。我们探讨了这种机制的两个实现,并表明与瘦物发生结合,可以识别出可行的有希望的参数空间区域,用于暗物质生产的参数空间,质量为10 MeV -1 GEV -1 GEV和衰减常数F $ 10^{10}} {10} -10^{12^{12} $ gev。

We investigate the possibility that the dark matter abundance is sourced by the baryon/lepton asymmetry of the early Universe. It turns out that a Goldstone field of a local classically preserved symmetry in the Standard Model experiences a kick during a period of baryon/lepton number generation. This mechanism can be regarded as dynamical generation of initial conditions for misalignment yet the prediction for relic abundance presents an inverse dependence on the coupling in parallel with freeze-in vs freeze-out. We explore two realizations of this mechanism and show that in conjunction with leptogenesis, it is possible to identify a viable promising region of parameter space for dark matter production with mass 10 MeV - 1 GeV and decay constant f in the range of $10^{10} - 10^{12}$ GeV.

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