2001•Physics Letters BOpen access

A global fit to the anomalous magnetic moment, b→Xγ and Higgs limits in the constrained MSSM

W. De Boer, M. Hüber, C. Sander, D. I. Kazakov

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Abstract

New data on the anomalous magnetic moment of the muon together with the b→Xsγ decay rate are considered within the supergravity inspired constrained minimal supersymmetric model. We perform a global statistical χ2 analysis of these data and show that the allowed region of parameter space is bounded from below by the Higgs limit, which depends on the trilinear coupling and from above by the anomalous magnetic moment aμ. The newest b→Xsγ data deviate 1.7σ from recent SM calculations and prefer a similar parameter region as the 2.6σ deviation from aμ.

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New data on the anomalous magnetic moment of the muon together with the b→Xsγ decay rate are considered within the supergravity inspired constrained minimal supersymmetric model. We perform a global statistical χ2 analysis of these data and show that the allowed region of parameter space is bounded from below by the Higgs limit, which depends on the trilinear coupling and from above by the anomalous magnetic moment aμ. The newest b→Xsγ data deviate 1.7σ from recent SM calculations and prefer a similar parameter region as the 2.6σ deviation from aμ.

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Available abstract

New data on the anomalous magnetic moment of the muon together with the b→Xsγ decay rate are considered within the supergravity inspired constrained minimal supersymmetric model. We perform a global statistical χ2 analysis of these data and show that the allowed region of parameter space is bounded from below by the Higgs limit, which depends on the trilinear coupling and from above by the anomalous magnetic moment aμ. The newest b→Xsγ data deviate 1.7σ from recent SM calculations and prefer a similar parameter region as the 2.6σ deviation from aμ.

Key concepts: Anomalous magnetic dipole moment, Physics, Muon, Particle physics, Parameter space, Higgs boson, Limit (mathematics), Supergravity

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