Constraining 2HDM by present and future muon (g-2) data

Aug, 1996
19 pages
Published in:
  • Phys.Rev.D 55 (1997) 6968-6974
e-Print:
Report number:
  • IFT-14-96,
  • IFT-96-14

Citations per year

199620032010201720220246810
Abstract: (arXiv)
Constraints on the general 2HDM ('Model II') are obtained from the existing (g2)μ(g-2)_{\mu} data including limits on Higgs bosons masses from LEP I data. We consider separately two cases: with a light scalar hh and with a light pseudoscalar AA, assuming Mh+MAMZ{M_{h}+M_{A}} \ge {M_{Z}}. The charged Higgs contribution is also included. It is found that already the present (g2)μ(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 MAM_A\sim 30 GeV if the mass difference between hh and AA is MZ\sim M_Z. Similar results should hold for a light scalar scenario as well.
  • 12.60.Fr
  • 14.80.Cp
  • muon: magnetic moment
  • electroweak interaction: model
  • Higgs particle: multiplet
  • doublet: 2
  • Higgs particle: mass
  • electron positron: annihilation
  • Higgs particle: neutral particle
  • Higgs particle: charged particle
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