A model for CMB anisotropies on large angular scales

We investigate the possibility that a low- temperature and low-frequency anomaly in the black- body spectrum, as it emerges when enlarging the standard model's gauge group factor U( 1) (Y) to SU( 2) ( Yang - Mills scale similar to 10(-4) eV), explains the discrepancy between the local group's velocity as directly observed and as inferred by assuming a purely kinematic origin of the cosmic microwave background ( CMB) dipole. This discrepancy determines the kinetic term for temperature. fluctuations in our model. The model can be used to predict the low multipoles with l >= 2 in the CMB temperature - temperature correlation and to reinvestigate the issue of statistical isotropy.