Short Distance Mass of a Heavy Quark at Order α_s^3

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

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Latex, 5 pages

Scientific paper

10.1103/PhysRevLett.83.4001

The relation between the on-shell quark mass and the mass defined in the
modified minimal subtraction scheme is computed up to order \alpha_s^3.
Implications for the numerical values of the top and bottom quark masses are
discussed. We show that the new three-loop correction significantly reduces the
theoretical uncertainty in the determination of the quark masses.

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