Two-loop Anomalous Dimensions of Heavy Baryon Currents in Heavy Quark Symmetry

Preprint

20 February 1997

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9702374

Abstract

This talk presents details of the calculation of two-loop corrections to heavy baryon currents containing one heavy quark in leading order of the $1/m_Q$-expansion, i.e. in the limit of Heavy Quark Symmetry (HQS). The calculations lead to the determination of the anomalous dimension of these currents. I also discuss problems with different $\gamma_5$-schemes and their solution by the finite renormalization procedure.

Keywords

ANOMALOUS DIMENSIONS
BARYON CURRENTS
LOOP ANOMALOUS
QUARK SYMMETRY
HEAVY BARYON
HEAVY QUARK
DIMENSION
TWO LOOP

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Version 1, 1997-02-20, ArXiv

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