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(Seminar) Higgsino Dark Matter in a Non-Standard History of the Universe
2019-09-02  【 】【打印】【关闭

CAS Key Laboratory of Theoretical Physics

Institute of Theoretical Physics

Chinese Academy of Sciences

Seminar

Title

题目

Higgsino Dark Matter in a Non-Standard History of the Universe

Speaker

报告人

韩成成

Affiliation

所在单位

韩国高等研究院(KIAS)

Date

日期

2019年9 月 2 日(周一)下午 4:00

Venue

地点

ITP South Building 6420

Abstract

摘要

A light higgsino is strongly favored by the naturalness, while as a dark matter candidate it is usually under-abundant. We consider the higgsino production in a non-standard history of the universe, caused by a scalar field with an initially displaced vacuum. We find that given a proper reheating temperature induced by the scalar decay, a light higgsino could provide the correct dark matter relic abundance. On the other hand, a sub-TeV higgsino dark matter, once observed, would be a strong hint of the non-standard thermal history of the universe.

Contact Person

所内联系人

杨金民
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