Gap in the black-body spectrum at low temperature

Abstract

We postulate that the U(1)${}_Y$ factor of the Standard Model is an effective manifestation of SU(2) gauge dynamics being dynamically broken by nonperturbative effects. The modified propagation properties of the photon at low temperatures and momenta are computed. As a result of strong screening, the presence of a sizable gap in the spectral power of a black body at temperatures $T=\mathrm{5...20}$K and for low frequencies is predicted: A table-top experiment should be able to discover this gap. If the gap is observed then the Standard Model's mechanism for electroweak symmetry-breaking is endangered by a contradiction with Big-Bang nucleosynthesis. Based on our results, we propose an explanation for the stability of cold, old, dilute, and large clouds of atomic hydrogen in between spiral arms of the outer galaxy.

9 pages, 4 figures, v2: consequences of a change in the evolution equation for the effective coupling implemented, practically no change in the physics

References in corpus (3)

• Experimental observation of optical rotation generated in vacuum by a magnetic field
• Nonperturbative approach to Yang-Mills thermodynamics
• "Missing Link" Clouds in the Southern Galactic Plane Survey

Cited by in corpus (7)

• Thermal photon dispersion law and modified black-body spectra
• Loop expansion in Yang-Mills thermodynamics
• A model for CMB anisotropies on large angular scales
• Low-frequency line temperatures of the CMB
• Modification of black-body radiance at low temperatures and frequencies
• Black-Body Anomaly: Analysis of Temperature Offsets
• Cosmological parameters from Planck data in SU(2)${}_{\mathrm{CMB}}$, their local $\Lambda$CDM values, and the modified photon Boltzmann equation