Topic: Dark matter candidates from multi-temperature U(1) hidden sectors   

Speaker: Assoc. Prof. Wanzhe Feng

Coordinates: PCFT C1124, 4pm, Friday, Apr. 23

Abstract: Supergravity and strings models typically contain hidden sectors with gauge groups including U(1)'s. These hidden sectors with U(1) gauge groups can interact feebly with the visible sector and interact feebly or with normal strength with each other. The fields in the visible and hidden sectors in general will reside in different heat baths and the universe will be a multi-temperature universe. I will discuss in general the U(1) extension of the Standard Model and MSSM with particular interest in various problems of different dark matter candidates.