The Pole Mass in Perturbative QCD
Jun, 198013 pages
Published in:
- Nucl.Phys.B 183 (1981) 384-396
- Published: 1981
Report number:
- CPT-80/P-1215
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Abstract: (Elsevier)
We review quark mass definitions in QCD, defending the identification of pole with constituent masses on the one hand and of invariant mass flavour ratios with current mass flavour ratios on the other. We prove that the pole mass is gauge-parameter independent and infrared finite at the two-loop level. We compute the two-loop mass anomalous dimension in the MS renormalization scheme. The renormalization group allows one to connect constituent with current mass ratios. For heavy flavours we predict the invariant masses.- QUANTUM CHROMODYNAMICS: PERTURBATION THEORY
- QUARK: MASS
- MASS: QUARK
- QUARK: FLAVOR
- MASS RATIO
- PERTURBATION THEORY: HIGHER-ORDER
- RENORMALIZATION GROUP: CALLAN-SYMANZIK EQUATION
- RENORMALIZATION: REGULARIZATION
- QUARK: PROPAGATOR
- FIELD THEORY: INFRARED PROBLEM
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