Constraining 2HDM by Present and Future Muon(g-2) Data

Abstract

Constraints on the general 2HDM ("Model II") are obtained from the existing $(g-2{)}_{\mu }$ data including limits on Higgs bosons masses from LEP I data. We consider separately two cases: with a light scalar $h$ and with a light pseudoscalar $A$, assuming $M_h+M_A\ge M_Z$. The charged Higgs contribution is also included. It is found that already the present $(g-2{)}_{\mu }$ data improve limits obtained recently by ALEPH collaboration on $\tb$ for the mass of the pseudoscalar below $ \mr$ 2 GeV. The improvement in the accuracy by factor 20 in the forthcoming E821 experiment may lead to more stringent, than provided by ALEPH group, limits up to $M_A\sim$ 30 GeV if the mass difference between $h$ and $A$ is $\sim M_Z$. Similar results should hold for a light scalar scenario as well.

19 pages, including 5 figures

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• CP Violation in Top Physics
• Large Two-Loop Contributions to g-2 from a Generic Pseudoscalar Boson
• Fingerprinting the extended Higgs sector using one-loop corrected Higgs boson couplings and future precision measurements
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• Fingerprinting non-minimal Higgs sectors
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• Top Dipole Form Factors and Loop-induced CP-violation in Supersymmetry
• Potential of Photon Collider in resolving SM-like scenarios
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• Light Charged Higgs bosons at the LHC in 2HDMs
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• Electron/Muon Specific Two Higgs Doublet Model
• Top and Higgs Flavor Changing Neutral Couplings in two Higgs Doublets Model
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• Bounds for Lepton Flavor Violation and the Pseudoscalar Higgs in the General Two Higgs Doublet Model using $g-2$ muon factor
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• Very Light Higgs Bosons in Extended Models at the LHC
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