(Seminar) Recent progress in cosmological collider physics--Institute of Theoretical Physics，Chinese Academy of Sciences

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05/12 2021

Abstract

CAS Key Laboratory of Theoretical Physics
Institute of Theoretical Physics
Chinese Academy of Sciences
Seminar
Title 题目	Recent progress in cosmological collider physics
Speaker 报告人	鲜于中之（助理教授）
Affiliation 所在单位	清华大学物理系
Date 日期	2021年5月12日（周三）15:00
Venue 地点	ITP South Building 6620
Contact Person 所内联系人	于江浩
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.