Phys. Rev. D 90, 094026 (2014) - Momentum subtraction and the $R$ ratio

Momentum subtraction and the $R$ ratio

Phys. Rev. D 90, 094026 – Published 19 November 2014

J. A. Gracey

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Abstract

We determine the $R$ ratio for massless quarks in several renormalization schemes to various loop orders. These are the momentum subtraction schemes of Celmaster and Gonsalves as well as the minimal momentum subtraction scheme. The dependence of the $R$ ratio on the schemes is analyzed.

DOI: http://dx.doi.org/10.1103/PhysRevD.90.094026

Published 19 November 2014
Received 2 September 2014

© 2014 American Physical Society

Authors & Affiliations

Theoretical Physics Division, Department of Mathematical Sciences, University of Liverpool, P.O. Box 147, Liverpool L69 3BX, United Kingdom

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