arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1401.1909astro-ph.COhep-ph
收藏

来自PBH的重子不对称性、暗物质和密度扰动

Baryon Asymmetry, Dark Matter, and Density Perturbation from PBH

Tomohiro Fujita, Keisuke Harigaya, Masahiro Kawasaki, Ryo Matsuda

摘要:

研究了一个由原初黑洞蒸发同时产生重子不对称性、暗物质和宇宙密度扰动的方案的一致性。该方案可以解释宇宙中的暗物质与重子密度的一致性,并且不存在等曲率微扰问题。我们表明,这种情况下预测的质量PBH,右手中微子和暗物质,哈勃尺度在通货膨胀,非高斯性和运行的光谱指数。我们还讨论了通过探测PBH中的高频引力波来检验该方案的可行性。

英文摘要:

We investigate the consistency of a scenario in which the baryon asymmetry, dark matters, as well as the cosmic density perturbation are generated simultaneously through the evaporation of primordial black holes (PBHs). This scenario can explain the coincidence of the dark matter and the baryon density of the universe, and is free from the isocurvature perturbation problem. We show that this scenario predicts the masses of PBHs, right-handed neutrinos and dark matters, the Hubble scale during inflation, the non-gaussianity and the running of the spectral index. We also discuss the testability of the scenario by detecting high frequency gravitational waves from PBHs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑