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| (Seminar) What if dark matter clusters? |
| 2018-07-17
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CAS Key Laboratory of Theoretical Physics |
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Institute of Theoretical Physics |
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Chinese Academy of Sciences |
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Seminar |
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Title
题目 |
What if dark matter clusters? |
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Speaker
报告人 |
Yongchao Zhang |
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Affiliation
所在单位 |
Washington University in St. Louis |
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Date
日期 |
2018年7月18日（周三）15:00 |
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Venue
地点 |
Conference Room 6420, ITP new building |
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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 |
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Contact person
所内联系人 |
Jing Shu |
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