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Primordial Black Holes from Affleck-Dine Baryogenesis

26 Jul 2018, 17:20
20m
Plaza 8

Plaza 8

Speaker

Hasegawa Fuminori (ICRR, The University of Tokyo, Kashiwa)

Description

In this talk, we propose a novel scenario which simultaneously explains O(10)M? primordial black holes (PBHs) in the minimally supersymmetric standard model. Gravitational waves (GWs) events detected by LIGO-Virgo collaboration suggest an existence of black holes as heavy as 30Msol?. In our scenario, as seeds of the PBHs, we make use of the baryon number perturbations which are induced by the special type of Affleck-Dine mechanism. Furthermore, the scenario does not suffer from the stringent constraints from CMB µ-distortion due to the Silk damping and pulsar timing. We find the scenario can explain not only the current GWs events consistently, but also dark matter abundance by the non-topological solitons formed after AffleckDine mechanism, called Q-balls.

Parallel Session Cosmology and Gravitational Waves

Primary author

Hasegawa Fuminori (ICRR, The University of Tokyo, Kashiwa)

Presentation materials