Three loop soft running, benchmark points and semi-perturbative unification

Details Three loop soft running, benchmark points and semi-perturbative unification Three loop soft running, benchmark points and semi-perturbative unification

2003-08-22

arxiv.org/abs/hep-ph/0308231v3

Phys.Lett. B579 (2004) 180-188

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, TeX, Uses Harvmac (big) and epsf. Added references (v2). More emphasis on magnitude of three loop corrections (v3)

Scientific paper

10.1016/j.physletb.2003.10.083

We consider three-loop $\beta$-function corrections to the sparticle spectrum in the MSSM, with particular emphasis on Snowmass Benchmark points. The three loop running has little effect on the weakly interacting particle spectrum, but for the squark masses the effect can be comparable to, or greater than, that of two loop running. We extend the analysis to the semi-perturbative unification scenario, where the impact of the three loop corrections becomes even more dramatic.

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