Next-to-leading order corrections to gauge-mediated gaugino masses

Details Next-to-leading order corrections to gauge-mediated gaugino masses Next-to-leading order corrections to gauge-mediated gaugino masses

1998-02-27

arxiv.org/abs/hep-ph/9802446v1

Nucl.Phys.B529:81-95,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages

Scientific paper

10.1016/S0550-3213(98)00383-6

We compute the next-to-leading order corrections to the gaugino masses $M_i$ 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 $M_i\propto \alpha_i$. 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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