Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-02-14
Phys.Rev. D68 (2003) 053003
Physics
High Energy Physics
High Energy Physics - Phenomenology
24 pages, 8 figures, RevTeX4, minor changes and new references
Scientific paper
10.1103/PhysRevD.68.053003
Requiring the two-Higgs-doublet model II to accommodate the 3$\sigma$ deviation in the muon anomalous magnetic moment imposes specific constraints on the Higgs spectrum. We analyze the combination of all the relevant, available, constraints on the model parameter space. The use of constraints from $b\to s \gamma$, the precision electroweak measurements of $R_b$, and the $\rho$ parameter, together with exclusions from direct searches at LEP, give extremely severe restrictions on the model parameters. That is "almost enough" to kill the model altogether. The exclusion would be even stronger if the direct searches can be optimized to complement the other constraints, as will be discussed in details in this work.
Cheung Kingman
Kong Otto C. W.
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