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arXiv · hep-ph/9809250

Infra-red stability of Yukawa and soft-breaking fixed points

I. Jack·D. R. T. Jones
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Abstract

We investigate the infra-red stability of the fixed points in the evolution of the Yukawa couplings, $A$-parameters and soft scalar masses in a broad class of supersymmetric theories. We show that the issue of stability is essentially determined in all three cases by the eigenvalues of the same matrix. In a very wide range of physically interesting theories it follows that, in the asymptotically free case, the existence of stable infra-red fixed points for the Yukawa couplings implies stable infra-red fixed points for the $A$-parameters and soft scalar masses.

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I. Jack, D. R. T. Jones. 1998-09-30. Infra-red stability of Yukawa and soft-breaking fixed points. https://doi.org/10.1016/s0370-2693(98)01321-5

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