| DATE: |
2013-02-26 16:00 - 17:00 |
| PLACE: |
Tsukuba campus, Building No.4 Room 345 (3rd floor) |
| TITLE: |
physics seminar / Determination of neutrino mass hierarchy by 21 cm line and CMB B-mode polarization observations |
| CONTACT: |
Takasumi Maruyama |
| SPEAKER: |
Kazunori Kohri (KEK) |
| ABSTRACT: |
We focus on the ongoing and future observations for both the 21 cm
line and the CMB B-mode polarization produced by a CMB lensing, and
study their sensitivities to the effective number of neutrino species,
the total neutrino mass, and the neutrino mass hierarchy. We find
that combining the CMB observations with future square kilometer
arrays optimized for 21 cm line such as Omniscope can determine the
neutrino mass hierarchy at a 90 % C.L. I will give a talk on a
corresponding introucution of cosmology at the first half of my talk. |
|
