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Seminar |
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Title 题目 |
Recent progress in cosmological collider physics |
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Speaker 报告人 |
鲜于中之 （助理教授） |
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Affiliation 所在单位 |
清华大学物理系 |
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Date 日期 |
2021年5月12日（周三）15:00 |
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Venue 地点 |
ITP South Building 6620 |
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Contact Person 所内联系人 |
于江浩 |
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Abstract 摘要 |
Heavy particles can be produced on shell during inflation and leave distinct signals in the correlations of density fluctuations. These signals can be searched for in the future CMB/LSS/21cm observations. In this talk I will introduce the basics of this cosmological collider program. I will then describe some recent works along this direction with fun physics and visibly large signals, including seeing heavy neutrinos, probing CP violations, missing energies, and a scenario of Cosmological Higgs Collider where the high-energy Higgs interactions can be measured from the primordial non-Gaussianity. |