23 citations
- Western UniversityCA65 papers
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9 papers · 1 filter
Renormalization Scheme Ambiguities in the Models with More than One Coupling
D. G. C. McKeon, Chenguang Zhao
The process of renormalization to eliminate divergences arising in quantum field theory is not uniquely defined; one can always perform a finite renormalization, rendering finite p…
Multiple Couplings and Renormalization Scheme Ambiguities
D. G. C. McKeon, Chenguang Zhao
The ambiguities inherent in renormalization are considered when using mass-independent renormalization in massless theories that involve two coupling coupling constants. We review…
Renormalization Mass Scale and Scheme Dependence in the Perturbative Contribution to Inclusive Semileptonic Decays
F. A. Chishtie, D. G. C. McKeon, T. N. Sherry
We examine the perturbative calculation of the inclusive semi-leptonic decay rate for the -quark, using mass-independent renormalization. To finite order of perturbation the…
Renormalization Scheme Dependence and the Renormalization Group Beta Function
F. A. Chishtie, D. G. C. McKeon
The renormalization that relates a coupling "a" associated with a distinct renormalization group beta function in a given theory is considered. Dimensional regularization and mass…
Renormalization Scheme Dependence and Renormalization Group Summation
F. A. Chishtie, D. G. C. McKeon
We consider logarithmic contributions to the free energy, instanton effective action and Laplace sum rules in QCD that are a consequence of radiative corrections. Upon summing thes…
Renormalization Scheme Dependence in a QCD Cross Section
Farrukh Chishtie, D. G. C. McKeon, T. N. Sherry
The zero to four loop contribution to the cross section for hadrons, when combined with the renormalization group equation, allows for…