Gauge-independent computation of t-quark mass |
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| Authors: | K Kanaya H Sugawara S Pakvasa SF Tan |
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| Institution: | National Laboratory for High Energy Physics, Tsukuba, Ibaraki 305, Japan;Department of Physics and Astronomy, University of Hawaii at Manoa, Honolulu, HI 96822, USA;Department of Physics, University of Wisconsin-Madison, Madison, WI 53706, USA |
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| Abstract: | We study a gauge-independent formulation for the effective mass of quark based on the momentum subtraction renormalization condition. To this end a gauge-independent quark propagator is introduced, and with the aid of the resulting mass anomalous dimension, we can discuss the threshold effects in a gauge-independent manner. As an example we find an earlier computation of the top quark mass is modified. We find 2Mt=51±1 GeV. |
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