DATE: |
2008-09-17 12:15 - 13:15 |
PLACE: |
Kenkyu Honkan 2F RM 220 |
TITLE: |
Superparticle Mass Window from Thermal Leptogenesis and Decaying Gravitino Dark Matter |
CONTACT: |
tsuda |
SPEAKER: |
Dr. Tetsuo Shindou (DESY, Germany) |
LANGUAGE: |
English |
ABSTRACT: |
The thermal leptogenesis is explored in gravitino dark matter scenarios. High reheating temperature is achieved by introducing R-parity violations. Low-energy observables put an upper limit on the reheating temperature. Assuming the universal gaugino mass at the grand-unified scale, we found that the reheating temperature can reach $O(10^9)$GeV for a gravitino mass of $O(100)$GeV. We also showed that superparticles of the standard model are expected to be detected in the Large Hadron Collider.
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