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(Seminar) What if dark matter clusters?
2018-07-17     Text Size:  A

CAS Key Laboratory of Theoretical Physics

Institute of Theoretical Physics

 Chinese Academy of Sciences

Seminar

Title

题目

What if dark matter clusters?

Speaker

报告人

Yongchao Zhang

Affiliation

所在单位

Washington University in St. Louis

Date

日期

2018年7月18日(周三)15:00

Venue

地点

Conference Room 6420, ITP new building

Abstract

摘要

There have been over-abundant evidences in the cosmological and astrophysical data for the existence of dark matter (DM). However, no uncontroversial DM signal has been confirmed in the direct detection experiments.  If DM clusters spatially and temporally, then the recoil signal in direct detection experiments is distinctly different from the conventional unclustered case. For certain sizes and densities of DM clusters, mutual cluster-detector encounters may occur only once every several years leading to the apparent failure of individual experiments searching for DM to discover it. If, however, encounters with Earth size and up to ten thousand times bigger clusters occur about once a year, then finding time correlations between events in different underground detectors can unambiguously lead to DM discovery. Reference:  1807.00846

Contact person

所内联系人

Jing Shu

 

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