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Board of Trustees Professor Seminar

Understanding Our Asymmetrical Universe

David Hedin, Ph.D.DO logo
Department of Physics

Board of Trustees Professor
Distinguished Research Professor

Dr. David Hedin2000 years ago natural philosophers thought the Universe was made from symmetrical forms such as circles. We now know that a perfectly symmetric Universe is a lifeless void and that it is its asymmetries that give rise to forms from stars to life itself. Dr. Hedin will describe a measurement of matter-antimatter asymmetries made by the DØ experiment at Fermilab, America’s particle physics laboratory in Batavia, Illinois. The result counts the number of muon (the electron’s heavier cousin) pairs made by proton-antiproton collisions in data collected from 2001-2011 and sees a slight excess in events where both muons are “matter” particles with a negative electric charge. Hedin will give an overview of NIU’s contribution to the design, construction, and operation of DØ’s muon system, including the efforts of 77 undergraduate and 44 graduate students.   

David Hedin joined Northern Illinois University in January 1987.  He formed NIU’s experimental particle physics group and leads NIU’s efforts on the DØ and Mu2e experiments at Fermilab, Hedin is a fellow of the American Physical Society, and was designated an NIU Presidential Research Professor in 1998 and an NIU Board of Trustees Professor in 2009. He has obtained over $10,000,000 in external funding, has directed 20 M.S. and Ph.D. thesis students, and supervised 95 undergraduate students while at NIU. Hedin initiated the physics outreach program in 2001 which later evolved to the current STEM program, and procured the telescope and other equipment for the Davis Hall Observatory.

Monday, October 7, 2013
Capitol Room, Holmes Student Center, Main Floor
11:30 a.m.—12:00 p.m., Refreshments
12:00 p.m.—1:00 p.m., Presentation and Q&A

No registration is required—Everyone is welcome!


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Last Updated: 07/16/2014