Time Trials for Fundamental Constants Theories aimed at - TopicsExpress



          

Time Trials for Fundamental Constants Theories aimed at unifying gravity with the three other fundamental forces (electromagnetic, weak, and strong) predict that certain fundamental constants could change in an expanding Universe . Support for this possibility is mixed: Absorption spectra of interstellar matter have led to claims both for and against variations of the fine structure constant, α=e2/ħc, and the proton-to-electron mass ratio, μ=mp/me . In 2011, a large study of atomic transitions from distant quasars, combined with earlier observations, suggested α was higher or lower depending on where one looked in the sky, with a significance of 4.2 standard deviations
Posted on: Mon, 17 Nov 2014 22:01:13 +0000

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