New precise particle measurement improves subatomic tool for probing mysteries of universe

29 septiembre 2015

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.