Gluon-field contribution in QCD sum rules for the magnetic moments of the nucleons

Wilson, SL and Pasupathy, J and Chiu, CB (1987) Gluon-field contribution in QCD sum rules for the magnetic moments of the nucleons. In: Physical Review D – Particles and Fields, 36 (5). 1451 -1458.

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Abstract

The Wilson coefficient corresponding to the gluon-field strength GμνGμν is evaluated for the nucleon current correlation function in the presence of a static external electromagnetic field, using a regulator mass Λ to separate the high-momentum part of the Feynman diagrams. The magnetic-moment sum rules are analyzed by two different methods and the sensitivity of the results to variations in Λ are discussed.

Item Type:	Journal Article
Publication:	Physical Review D – Particles and Fields
Publisher:	The American Physical Society
Additional Information:	Copyright of this article belongs to The American Physical Society.
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for Theoretical Studies (Ceased to exist at the end of 2003)
Date Deposited:	23 Jul 2009 05:31
Last Modified:	19 Sep 2010 05:34
URI:	http://eprints.iisc.ac.in/id/eprint/20794

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