Mar 22, 2019
Physicists reveal why matter dominates our universe
Distinguished Professor Sheldon Stone says the findings are a first, although matter-antimatter asymmetry has been observed before in particles with strange quarks or beauty quarks.
He and members of the College’s High-Energy Physics (HEP) research group have measured, for the first time and with 99.999-percent certainty, a difference in the way D0mesons and anti-D0 mesons transform into more stable byproducts.
Mesons are subatomic particles composed of one quark and one antiquark, bound together by strong interactions.
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