Center for Theoretical Physics of the Universe (CTPU)

Non-thermal WIMP baryogengesis

by Prof. Ki-Young Choi (SKKU)

Wednesday, 30 May 2018 from to (Asia/Seoul)
at CTPU Seminar Room
Fourth floor IBS Building, 55, Expo-ro, Yuseong-gu, Daejeon, Korea, 34126
Description

I will talk about baryogensis achieved by the annihilation of non-thermally produced WIMPs from decay of heavy particles, which can result in low reheating temerature. Dark matter (DM) can be produced non-thermally during a reheating period created by the decay of long-lived heavy particle, and subsequently re-annihilate to lighter particles even after the thermal freeze-out. The re-annihilation of DM provides the observed baryon asymmetry as well as the correct relic density of DM. I will explain how wahout effects can affect the generation of the baryon asymmetry and how to suppress them.

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