An efficient renormalization group improved implementation of the MSSM effective potential

Details An efficient renormalization group improved implementation of the MSSM effective potential An efficient renormalization group improved implementation of the MSSM effective potential

1999-05-08

arxiv.org/abs/hep-ph/9905278v2

Eur.Phys.J.C17:675-684,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

35 pages, 5 figures, RevTex

Scientific paper

10.1007/s100520000456

In the context of MSSM, a novel improving procedure based on the renormalization group equation is applied to the effective potential in the Higgs sector. We focus on the one-loop radiative corrections computed in Landau gauge by using the mass independent renormalization scheme $\bar{DR}$. Thanks to the decoupling theorem, the well-known multimass scale problem is circumvented by switching to a new effective field theory every time a new particle threshold is encountered. We find that, for any field configuration, there is a convenient renormalization scale $\tilde{Q}^*$ at which the loop expansion respects the perturbation series hierarchy and the theory retains the vital property of stability.

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