Millicharged relics reveal massless dark photons
Millicharged relics reveal massless dark photons
复制标题
毫荷电遗迹揭示无质量暗光子
DOI:
10.1007/jhep05(2023)046
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发表时间:
2023
影响因子:
5.4
通讯作者:
Ruderman, Joshua T.
中科院分区:
文献类型:
--
作者:
Berlin, Asher;Dror, Jeff A.;Gan, Xucheng;Ruderman, Joshua T.
The detection of massless kinetically-mixed dark photons is notoriously difficult, as the effect of this mixing can be removed by a field redefinition in vacuum. In this work, we study the prospect of detecting massless dark photons in the presence of a cosmic relic directly charged under this dark electromagnetism. Such millicharged particles, in the form of dark matter or dark radiation, generate an effective dark photon mass that drives photon-to-dark photon oscillations in the early universe. We also study the prospect for such models to alleviate existing cosmological constraints on massive dark photons, enlarging the motivation for direct tests of this parameter space using precision terrestrial probes.
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--
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期刊:
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