Next-to-leading order corrections to gauge-mediated gaugino masses
Abstract
We compute the next-to-leading order corrections to the gaugino masses Mi in gauge-mediated models for generic values of the messenger masses M and discuss the predictions of unified messenger models. If M<100 TeV there can be up to 10% corrections to the leading order relations Mi αi. If the messengers are heavier there are only few % corrections. We also study the messenger corrections to gauge coupling unification: as a result of cancellations dictated by supersymmetry, the predicted value of the strong coupling constant is typically only negligibly increased.
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