by Prof. Yu Gao (高宇) (the Institute of High Energy Physics, CAS)

5#/6th-603 - Meeting Room 603 (Science Building)

5#/6th-603 - Meeting Room 603

Science Building



Dark matter candidates like the WIMPs and primordial black holes are involved in long-timescale energy emission processes, such as annihilation, decay, Hawking radiation, and black hole accretion. Such energy injection during the dark age of the Universe modifies the cosmic ionization and temperature evolution, which lead to observable impacts on the anisotropy spectrum of the cosmic microwave background, as well as in major CMB derivatives, like the 21cm signal, and precision cosmological fits. The current CMB data already provide competitive sensitivity compared to these from high-energy cosmic ray searches. Future 21cm will likely improve the observation sensitivity in a very significant manner. I will discuss the current status and near-future prospects of these methods for dark matter indirect searches.



Dr. Yu Gao is an associate professor in affiliation with the Institute of High Energy Physics, Chinese Academy of Sciences. Yu Gao received his Ph.D. in theoretical physics from the University of Wisconsin-Madison. In 2010, He worked as a postdoctorate associate at Oregon University, Texas A&M University, and Wayne State University, and later joined the Institute of High Energy Physics in 2017. He has a broad interest in theories Beyond the Standard Model of particle physics, esp. particle aspects of dark matter and phenomenology. Yu Gao is also interested in new experimental searches for new physics. He was an initiating member of the MINER reactor neutrino experiment and was recently involved in novel methodologies of axion dark matter and gravitational wave searches.

Host: Prof. Yifeng Sun 

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