Gauge dependence of on-shell and pole mass renormalization prescriptions
arXiv:hep-ph/0508227 · doi:10.1088/0253-6102/49/5/37
Abstract
We discuss the gauge dependence of physical parameter's definitions under the on-shell and pole mass renormalization prescriptions. By two-loop-level calculations we prove for the first time that the on-shell mass renormalization prescription makes physical result gauge dependent. On the other hand, such gauge dependence doesn't appear in the result of the pole mass renormalization prescription. Our calculation also implies the difference of the physical results between the two mass renormalization prescriptions cannot be neglected at two-loop level.
28 pages, 15 figures
References in corpus (12)
- Automatized One-Loop Calculations in 4 and D dimensions
- The Nielsen Identities of the SM and the definition of mass
- Electroweak two-loop corrections to the MW-MZ mass correlation in the Standard Model
- MS Versus Pole Masses of Gauge Bosons II: Two-Loop Electroweak Fermion Corrections
- Complete fermionic two-loop results for the M_W-M_Z interdependence
- MS vs. Pole Masses of Gauge Bosons: Electroweak Bosonic Two-Loop Corrections
- Width and Partial Widths of Unstable Particles
- Differences Between the Pole and On-Shell Masses and Widths of the Higgs Boson
- The Nielsen Identities for the Two-Point Functions of QED and QCD
- Analysis of the Z^0 Resonant Amplitude in General R_ξGauges
- On the Field Renormalization Constant for Unstable Particles
- OMS-bar scheme of UV renormalization in the presence of unstable fundamental particles