| DATE: |
2005-04-19 11:00 - |
| PLACE: |
Kenkyu Honkan 2F RM220 |
| TITLE: |
Thermal leptogenesis in gauge mediation model |
| CONTACT: |
tango |
| SPEAKER: |
Dr. Masahiro Ibe (Univ. of Tokyo) |
| LANGUAGE: |
Japanese |
| ABSTRACT: |
Thermal leptogensis provides a simple explanation of the cosmological matter-antimatter asymmetry. However, the thermal leptogenesis requires the very high reheating temperature of universe; TR> 10^10ˇ±GeV, and we suffer from the overproduction of the gravtino in a supersymmetric standard model. I will explain that we can avoid the problem by considering the gauge mediated supersymmetry breaking models.
|
|
