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arXiv · 1509.00073

Implications of a Running Dark Photon Coupling

Hooman Davoudiasl
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Abstract

For an "invisible" dark photon $Z_d$ that dominantly decays into dark states, the running of its fine structure constant $α_d$ with momentum transfer $q > m_{Z_d}$ could be significant. A similar running in the kinetic mixing parameter $\varepsilon^2$ can be induced through its dependence on $α_d(q)$. The running of couplings could potentially be detected in "dark matter beam" experiments, for which theoretical considerations imply $α_d (m_{Z_d}) \lesssim 0.5$.

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Hooman Davoudiasl. 2015-08-31. Implications of a Running Dark Photon Coupling. https://arxiv.org/abs/1509.00073

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