ACT, SPT and WMAP9

We extended our previous analysis in “Does the CMB prefer a leptonic universe?“. Including the newest data of the Atacama Cosmology Telescope, the Southpole Telescope and the final data analysis of the WMAP Satellite sharpens our idea! A neutrino chemical potential explains naturally the higher helium fraction, but keeps the effective numbers of neutrinos close to the standard value. Check figure 2 in our article. Dominik Schwarz an me shot a small video about our work. It will be published soon…