Date: |
October 23, 2008, 13:30 - 15:00 |
Place: |
Seminar Room at IPMU Prefab. B, Kashiwa Campus of the University of Tokyo |
Speaker: |
Alex Kusenko (UCLA) |
Title: |
Echoes of supersymmetry from the early universe: baryons, dark
matter, and gravitational waves.
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Abstract: |
Supersymmetry and inflation combined create the conditions in the
early universe for Affleck-Dine baryogenesis, which can give rise to the
matter-antimatter asymmetry, as well as to dark matter in the form of SUSY
Q-balls. The fragmentation of the condensate into lumps (Q-balls) can also
produce gravity waves at the level detectable by Laser Interferometer Space
Antenna (LISA), Advanced Laser Interferometer Gravitational-Wave Observatory
(LIGO), and Big Bang Observer (BBO). An observation of such a signal can
offer an important window on the early universe and the physics at some very
high energy scales.
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