arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1407.0993hep-phastro-ph.CO
收藏

极暗光子的宇宙学约束

Cosmological Constraints on Very Dark Photons

Anthony Fradette, Maxim Pospelov, Josef Pradler, Adam Ritz

摘要:

我们探索的宇宙学后果的动力学混合暗光子的质量在1 MeV和10 GeV之间,和一个有效的电磁精细结构常数小到$10^{-38}$。我们计算了这些暗光子在早期宇宙中的冻结丰度,并探讨了后期衰变对BBN和CMB的影响。这导致对质量$m_V$与动力学混合参数$κ$的参数空间的新约束。

英文摘要:

We explore the cosmological consequences of kinetically mixed dark photons with a mass between 1 MeV and 10 GeV, and an effective electromagnetic fine structure constant as small as $10^{-38}$. We calculate the freeze-in abundance of these dark photons in the early Universe and explore the impact of late decays on BBN and the CMB. This leads to new constraints on the parameter space of mass $m_V$ vs kinetic mixing parameter $κ$.

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。

↑