A Light CP-odd Higgs boson and the muon anomalous magnetic moment
Aug, 2008Citations per year
Abstract: (arXiv)
We amalgamate the many experimental limits on the ab\anti b coupling of a light CP-odd Higgs boson, , including model-dependence coming from the ratio of the at\anti t to the a b\anti b coupling. We then employ these limits to analyze the extent to which a light can make a significant contribution to the discrepancy, , between the experimentally observed and that predicted by the standard model. In a ``model-independent'' framework and in the context of a general two-Higgs-doublet model this is a significant possibility. In contrast, the minimal supersymmetric model is too strongly constrained (after combining experimental and theoretical input) to allow a CP-odd- explanation of . The next-to-minimal supersymmetric model allows more freedom and the light of the model could explain the full if 9.2\gev<\ma<12\gev , or contribute substantially for larger \ma, if \tanb is large.- minimal supersymmetric standard model
- Higgs particle: multiplet
- doublet: 2
- CP: violation
- muon: magnetic moment
- Higgs particle: decay modes
- Higgs particle: branching ratio
- Upsilon(9460): radiative decay
- Upsilon(9460): branching ratio
- electron positron: annihilation
References(34)
Figures(7)