Seminars & Lectures
| * TITLE | WIMPZILLA with dark radiation | ||||||
|---|---|---|---|---|---|---|---|
| * SPEAKERS | |||||||
|
|||||||
| * HOST(Applicant) | |||||||
|
|||||||
| * DATE / TIME | 2013-05-14, 16:00 | ||||||
| * PLACE | 503 Conference room | ||||||
| * ABSTRACT | |||||||
| As the electromagnetic gauge symmetry makes electron stable, a new abelian gauge symmetry may be responsible for the stabilization of superheavy dark matter. The gauge boson associated with the new gauge symmetry naturally plays the role of dark radiation thus can contribute to the effective `neutrino species\\\\\\\', which has been recently measured by e.g., Planck. We estimate the contribution of dark radiation in a scenario with an additional scalar particle where the scalar particle radiatively decays through the WIMPZILLA-induced loop. The scalar particle also contributes to the Higgs invisible decay. | |||||||
