Running of $α_s$ in the MSSM with three-loop accuracy

Details Running of $α_s$ in the MSSM with three-loop accuracy Running of $α_s$ in the MSSM with three-loop accuracy

2007-10-11

arxiv.org/abs/0710.2236v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Submitted for the SUSY07 proceedings, 4 pages, 2 figures

Scientific paper

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

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