Comet Calendar Event Details

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The Office of Research Presents "Searching for Dark Matter: The Key Player of Modern Cosmology" with Dr. Xiangdong Ji
Tuesday, Nov. 19, 2019
10:30 a.m. - 11:30 a.m. Location: DGA 1.102B

Modern cosmology asserts the Universe is filled with dark matter, a substance that controls the evolution of the large-scale structure of the cosmos and determines the forms of the individual galaxies.  There are compelling arguments that the constituents of dark matter are weakly-interacting massive particles, or WIMPs, that arise naturally in physics beyond the Standard Model.  Searches for WIMPs using various low-energy detectors have been conducted around the globe for nearly thirty years, with ever greater improvements in scale and sensitivity. After a brief overview of the field, I will focus on a dark-matter experiment in China, PandaX, running in the Jinping Underground Lab, Sichuan Province. The PandaX-II detector used 580kg ultrapure liquid xenon as the detection target, and had a record sensitivity about ~0.1 events/ton day. The current upgrade to a 4-ton experiment will be discussed, along with the prospect of building the world's “ultimate WIMP dark matter detector” in the next decade.

Dr. Ji received his Ph.D. in nuclear theory in 1987 from Drexel University. After postdoctoral
appointments at Caltech and MIT, he served as assistant professor at the Center for Theoretical
Physics at MIT from 1991 to 1996. Since 1996, he has served as professor of physics at the University
of Maryland, where he currently is Distinguished University Professor. He also served as Dean of
Physics at Shanghai Jiao Tong University from 2009-2014.

Dr. Ji’s theoretical physics research area is Quantum Chromodynamics, the fundamental theory of
strong interactions, and the structure of the proton.

Since 2009, he has built and lead an experimental group in China, the PandaX collaboration,
searching for a form of dark matter particles, WIMPs, using liquid xenon technology. In 2016 and
2017, PandaX obtained the world's most sensitive detection results, which were selected as one of the
"Highlights" of the American Physics Society in 2017.

Dr. Ji has been a Fellow of the American Physical Society since 2000. His honors and awards include
the Humboldt Research Award in 2014, the Distinguished Nuclear Physicist award by the Jefferson
Science Association in 2015, and the Herman Feshbach Prize in Theoretical Nuclear Physics from
the American Physics Society in 2016. He is a member of the Committee for the Future Science Prize
in China since 2017, and served as its chair in 2019.

Persons with disabilities may submit a request for accommodations to participate in this event at UT Dallas' ADA website. You may also call (972) 883-5331 for assistance or send an email to [email protected]. All requests should be received no later than 2 business days prior to the event.
Contact Info:
Suzanne Head, 972-883-5317
Questions? Email me.

Tagged as Lectures/Seminars, Professional Dev.
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