Institute of Theoretical Physics
Chinese Academy of Sciences

学术报告

Title
题目

Cosmic Coincidence and Asymmetric Dark Matter in a Stueckelberg Extension

Speaker
报告人

Dr. Wan-Zhe Feng

Department of Physics and Institute for Advanced Study,

Date
日期

2013-07-18 PM 15:30 Thursday

Venue
地点

ITP New Building 6420, 理论物理研究所新楼四层多媒体教室

Abstract
摘要

We discuss the possibility of the cosmic coincidence generating the ratio of baryon asymmetry to dark matter in a Stueckelberg U(1) extension of the standard model and of the minimal supersymmetric standard model. In this talk I will discuss two possibilities: (1) A (B-L) asymmetry is assumed to generate in the early universe and such an asymmetry is then transferred to the dark sector at high temperatures. (2) Primordial fields decay purely to the dark sector creating the asymmetric dark matter and this asymmetry is subsequently transmuted into leptons and baryons. Solutions to the Boltzmann equations for relics in the presence of asymmetric dark matter, and possible collider signatures will also be discussed.

Contact
所内联系人

舒菁