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Quark mass anomalous dimension at O(1/N-f(2)) in QCD

Ciuchinia, M.; Derkachov, S.É.; Gracey, J.A. and Manashov, A.N. (1999) Quark mass anomalous dimension at O(1/N-f(2)) in QCD. Physics Letters B, 458 (1). pp. 117-126. ISSN 0370-2693

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Official URL: http://www.elsevier.com/wps/find/journaldescriptio...

Abstract

We compute the d-dimensional critical exponents corresponding to the wave function and mass renormalization of the quark in QCD in the Landau gauge at a new order, O(1/N_f^2), in the large N_f expansion. The computations are simplified by the establishment in d-dimensions of the critical point equivalence of QCD and the non-abelian Thirring model beyond leading order. The form of the O(1/N_f^2) coefficients in the MSbar quark mass anomalous dimension at five loops is deduced and compared with the numerical asymptotic Pade approximant prediction.

Item Type:Article
Additional Information:LTH 451. arXiv Number: arXiv:hep-ph/9903410v1. Available online 7 July 1999. Issue: 1 July 1999.
Uncontrolled Keywords:DEEP-INELASTIC SCATTERING; CRITICAL EXPONENT-ETA; 4-LOOP BETA-FUNCTION; QUANTUM ELECTRODYNAMICS; ARBITRARY DIMENSIONS; OPERATORS; CHROMODYNAMICS; APPROXIMATION; COMPUTATION; EXPANSION
Subjects:Q Science > QC Physics
Departments, Research Centres and Related Units:Academic Faculties, Institutes and Research Centres > Faculty of Science > Department of Mathematical Sciences
DOI:10.1016/S0370-2693(99)00573-0
Related URLs:
Refereed:No
Status:Published
ID Code:620
Deposited On:01 Dec 2008 10:26
Last Modified:27 Feb 2012 13:37

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