Authors: P. R. Silva
Running coupling constants both of QED and QCD are studied in a heuristic way. We estimate two branches of the running coupling of the QCD, the first going from low to moderate energies, and the second running at high energies. The intercept of the high energy branch of QCD with the high energy curve of the QED-coupling is used, as a means to estimate the Grand Unification Theory (GUT) scale.
Comments: 19 pages, 02 figures,01 table
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[v1] 2015-07-18 14:05:11
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