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

09/02 2019
  • Title (Seminar) Higgsino Dark Matter in a Non-Standard History of the Universe
  • Speaker
  • Date
  • Venue
  • Abstract

    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