Colloquium: Dark Matter and the Search for a Fifth Force

04/14/2017 - 3:30pm to 4:30pm
Speaker(s) / Presenter(s): 
Prof. Jonathan Feng, University of California, Irvine
The possibility of a fifth fundamental force, induced by a new force-carrier particle, has been the topic of intense interest at various times in the past several decades. Recently the search for a fifth force has found new motivations from the need to explain dark matter. I will discuss the colorful history of fifth force searches, the connection between new forces and dark matter, the worldwide program now searching for such new forces, and the preliminary, but striking, evidence that a fifth force may already have been seen in an experiment at the boundary of nuclear and particle physics.
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