LOG#123. Basic Neutrinology(VIII).

There are some indirect constraints/bounds on neutrino masses provided by Cosmology. The most important is the one coming from the demand that the energy density of the neutrinos should not be too high, otherwise the Universe would collapse and it … Continue reading

LOG#109. Basic Cosmology (IV).

Today, a new post in this fascinating Cosmology thread… The Big Bang Nucleosynthesis in a nutshell When the Universe was young, about , the following events happen 1st. Some particles remained in thermodynamical equilibrium with the primordial plasma (photons, positrons … Continue reading