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A strongly interacting SU(2) pure gauge theory and the nature of light

Ralf Hofmann
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Abstract

We present quantitative and qualitative arguments in favor of the claim that, within the present cosmological epoch, the U(1)$_Y$ factor in the Standard Model is an effective manifestation of SU(2) pure gauge dynamics of Yang-Mills scale $Λ\sim 10^{-4}$ eV. Results for the pressure and the energy density in the deconfining phase of this theory, obtained in a nonperturbative and analytical way, support this connection in view of large-angle features inherent in the map of the CMB temperature fluctuations and temperature-polarization cross correlations.

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Ralf Hofmann. 2006-11-27. A strongly interacting SU(2) pure gauge theory and the nature of light. https://arxiv.org/abs/hep-ph/0508176

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