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arXiv · 0710.2236

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

Luminita Mihaila
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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 $\bar{\rm MS}$ 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 $α_s$.

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Luminita Mihaila. 2007-10-11. Running of $α_s$ in the MSSM with three-loop accuracy. https://arxiv.org/abs/0710.2236

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