Running of α_s in the MSSM with three-loop accuracy

2007/10/11 by Luminita Mihaila, Mihaila, Luminita
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.0710.2236

Submitted for the SUSY07 proceedings, 4 pages, 2 figures

arxiv created 2007/10/11 · arxiv updated 2009/12/01

Abstract

The evolution of the strong coupling constant α_s from M_Z to the GUT scale is presented, involving three-loop running and two-loop decoupling. Accordingly, the two-loop transition from the \rm MS to the \rm DR scheme is properly taken into account. We find that the three-loop effects are comparable to the experimental uncertainty for α_s.

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