In a post-Big Bang world, nature’s top quark — a key component of matter — is a highly sensitive probe that physicists use to evaluate competing theories about quantum interactions. Now a new precise measurement of the top quark’s mass by physicists improves that subatomic tool to help unravel deep mysteries of our universe. The new value confirms recent measurements by other physicists — but adds growing uncertainty to physics’ Standard Model.
http://www.sciencedaily.com/releases/2015/09/150929112034.htm
New precise particle measurement improves subatomic tool for probing mysteries of universe
29 September 2015
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