Talk detail

Participant	Lee, Hyung Won
Institution	Inje University - 197 Inje-ro - Gimhae - Gyeongnam - South Korea

Session	CM2	Accepted		Order	Time
Talk	Oral abstract	Title	Energy density contribution of massive degenerate neutrinos
Co-authors
Abstract	The mass of neutrinos are confirmed indirectly by many neustrino oscillation experiments. Hence the standard cosmological implications assuming massless neutrinos should be re-analyzed. Also it is well known that neutrinos could be degenerated and the degenerated neutrinos could affect cosmological evolution and contribute marginally energy density of the universe. On the other hand, the dark energy components of the universe dominate in recent epoch of the cosmological evolution was observed by various astronomical observations. However, its physical basement is unknown. There are only the phenomenological models mimicking the current observational results using modified gravity, scalar fields, etc. In this talk, we want to try explain the dark energy component using only the standard model, that is, standard particle theory with massive degenerate neutrinos. The main idea is that we want to explain the dark energy as massive degenerate neutrinos. To do this, we concentrate to study the fermionic property of the neutrinos and its behaviour at very low temperature.