【T. D. Lee Colloquium No. 13】LHAASO Starts Uncovering the Origin of Cosmic Rays below and above the Knee
by
S541 Lecture Hall
LHAASO is introduced as an astrophysics experiment and a major instrument for multi-messenger astronomy. The latest results of gamma ray source survey and precision measurements of cosmic rays are updated in the talk. Individual cosmic ray sources, the Cygnus Bubble and SNR W51, are found efficient sources to produce cosmic rays below and above the “knee”. Comprehensive scenario of CR production, injection and propagation through the inter staller medium starts to manifest with, however, missing pieces of the huge puzzle. New instruments are demanded in both gamma ray and neutrino astronomy to find the missing pieces. Future prospects are updated and discussed in this talk.
Zhen Cao, academician of Chinese academy of Science. He graduated from Physics Department of Yunan University in 1982, then he was awarded the Ph. Doctoral degree at the Institute of High Energy Physics(IHEP), Beijing, in 1994.He worked for the Physics Department of University of Oregon as a Research Associate since 1994 and moved to the Physics Department of University of Utah also as a research associate in 1998, then was promoted as a research associate professor since 2003 until he left the position in 2009.In 2004, he was promoted as a professor in the Particle Astrophysics Research Center of IHEP. Since 2013, he has been appointed to be the Chief Scientist and director of the project Large High Altitude Air Shower Observatory (LHAASO), one of mega science projects of the major national infrastructure facilities. He was employed as a professor of University of CAS since 2015. He has been elected as the director of “Tianfu Cosmic Ray Research Center” since 2019. He devoted himself in cosmic ray physics and gamma ray astronomy since 1994, and has been very active throughout his research career. He participated numerous major cosmic ray experiments in the world and has been leading a couple of them. He has established significant achievements in the field with more than 130 scientific articles published in the major journals around the world. The citation of those articles counts over 5,500 in total. He was elected to be the standing board member of the High Energy Physics Society of Chinese Physics Society since 2007.
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