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

1997/02/20 by Stefan Groote, Groote, Stefan
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9702374

9 pages, 2 figures, talk given at the Triangle Graduate School in Particle Physics, Prague, Czech Republic, September 2--10, 1996

arxiv created 1997/02/20 · arxiv updated 2009/11/30

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 γ₅-schemes and their solution by the finite renormalization procedure.

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