Is the LHC observing the pseudoscalar state of a two-Higgs-doublet model?

@article{Burdman2012IsTL,
  title={Is the LHC observing the pseudoscalar state of a two-Higgs-doublet model?},
  author={Gustavo Burdman and Carlos Eduardo Ferreira Haluch and Ricardo D'Elia Matheus},
  journal={Physical Review D},
  year={2012},
  volume={85},
  pages={6}
}
The ATLAS and CMS collaborations have recently shown data suggesting the presence of a Higgs boson in the vicinity of 125 GeV. We show that a two-Higgs-doublet model spectrum, with the pseudoscalar state being the lightest, could be responsible for the diphoton signal events. In this model, the other scalars are considerably heavier and are not excluded by the current LHC data. If this assumption is correct, future LHC data should show a strengthening of the �� signal, while the signals in the… Expand

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References

SHOWING 1-10 OF 13 REFERENCES
JHEP 1112
  • 038
  • 2011
arXiv:1202.1408 [hep-ex]
  • [ATLAS Collaboration], Phys. Lett. B 710,
  • 2012
arXiv:1202.1414 [hep-ex]
  • [ATLAS Collaboration], Phys. Rev. Lett. 108,
  • 2012
Phys
  • Rev. D 84, 115025
  • 2011
Phys
  • Lett. B 702, 224
  • 2011
Particle Data Group Collaboration
  • J. Phys. G G 37,
  • 2010
Phys
  • Rev. D81, 075003
  • 2010
We check tree - level unitarity using the 2 HDM calculator from D . Eriksson , J . Rathsman and O . Stal
  • Comput . Phys . Commun .
  • 2010
The CMS Collaboration , Combination of CMS Searches for a Standard Model Higgs Boson , CMS PAS HIG - 11 - 032 . [ 3 ] G . Aad et al . [ ATLAS Collaboration ]
  • 2009
JHEP 0712
  • 086
  • 2007
...
1
2
...