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arXiv 1302.3884hep-phastro-ph.COastro-ph.SRhep-ex
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暗光子的新恒星约束

New stellar constraints on dark photons

Haipeng An, Maxim Pospelov, Josef Pradler

摘要:

我们考虑在“暗光子”的极小模型内的矢量态V的恒星产生。我们发现当暗矢量的Stuckelberg质量小于等离子体频率时,辐射率主要由V的纵模的产生决定,其标度为κ^2 m_V^2,其中κ和m_V是与光子的混合角和暗态的质量.这与文献中早期错误的说法形成对比,即发射率是质量的四次方。通过计算太阳和红巨星的冷却速率,我们得到了(κ,mV)参数空间的约束条件。我们发现,恒星的mV < 10 eV的边界显着加强,在某种程度上,所有目前的“光照射通过墙”的实验发现自己在深深排除的区域。

英文摘要:

We consider the stellar production of vector states V within the minimal model of "dark photons". We show that when the Stuckelberg mass of the dark vector becomes smaller than plasma frequency, the emission rate is dominated by the production of the longitudinal modes of V, and scales as κ^2 m_V^2, where κand m_V are the mixing angle with the photon and the mass of the dark state. This is in contrast with earlier erroneous claims in the literature that the emission rate decouples as the forth power of the mass. We derive ensuing constraints on the (κ, m_V) parameter space by calculating the cooling rates for the Sun and red giant stars. We find that stellar bounds for m_V < 10 eV are significantly strengthened, to the extent that all current "light-shining-through-wall" experiments find themselves within deeply excluded regions.

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。

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