Axion Dark Matter in High Scale Inflation Scenario

 

Prof Kiwoon Choi
Korea Advanced Institute of Science and Technology
 

13 January 2015 (Tuesday)
2:30 pm
IAS2042, 2/F, Lo Ka Chung Building, Lee Shau Kee Campus, HKUST

Abstract:

QCD axion introduced to solve the strong CP problem of the Standard Model of particle physics is one of the most compelling candidates for dark matter in the universe. The speaker will discuss the cosmological constraints on axion dark matter in a more generic context than the previous discussion, taking into account that the axion scale can have a nontrivial cosmological evolution. He will also propose a noble supersymmetric axion model in which the axion isocurvature perturbation generated during the primordial high scale inflation is diluted by a late thermal inflation, while still a right amount of axion dark matter is achieved by the conventional misalignment mechanism.

 

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The seminar is free and open to the public. No registration is required. Seating is on a first-come first-served basis.

HKUST Jockey Club Institute for Advanced Study
URL: http://ias.ust.hk
Enquiries: ias@ust.hk / 2358 5912

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