On the phenomenology of a two-Higgs-doublet model with maximal CP symmetry at the LHC. Part II: radiative effects

  • M. Maniatis
  • O. Nachtmann


The processes \(p \bar{p} \) and pp → γ + heavy-flavour jet(s) + X are studied in the framework of a special two-Higgs-doublet model, the MCPM. As distinguishing feature of this model we find that radiative Higgs-boson production and decay lead to heavy flavour c jets but no b jets in the above processes. Thus, the prediction is that b jets should be given by the normal QCD processes whereas for c jets an excess over the QCD expectation should occur. We present results both for Tevatron and LHC energies.


Higgs Physics Beyond Standard Model Hadronic Colliders 


  1. [1]
    M. Kobayashi and T. Maskawa, CP Violation in the Renormalizable Theory of Weak Interaction, Prog. Theor. Phys. 49 (1973) 652 [SPIRES].CrossRefADSGoogle Scholar
  2. [2]
    T.D. Lee, A Theory of Spontaneous T Violation, Phys. Rev. D 8 (1973) 1226 [SPIRES].ADSGoogle Scholar
  3. [3]
    T.D. Lee, CP Nonconservation and Spontaneous Symmetry Breaking, Phys. Rept. 9 (1974) 143 [SPIRES].CrossRefADSGoogle Scholar
  4. [4]
    S.L. Glashow and S. Weinberg, Natural Conservation Laws for Neutral Currents, Phys. Rev. D 15 (1977) 1958 [SPIRES].ADSGoogle Scholar
  5. [5]
    E.A. Paschos, Diagonal Neutral Currents, Phys. Rev. D 15 (1977) 1966 [SPIRES].ADSGoogle Scholar
  6. [6]
    J.F. Gunion, H.E. Haber, G.L. Kane and S. Dawson, The Higgs Hunter's Guide, Addison-Wesley, Redwood City U.S.A. (1990).Google Scholar
  7. [7]
    G. Cvetič, CP violation in bosonic sector of SM with two Higgs doublets, Phys. Rev. D 48 (1993) 5280 [hep-ph/9309202] [SPIRES].ADSGoogle Scholar
  8. [8]
    I.F. Ginzburg and M. Krawczyk, Symmetries of two Higgs doublet model and CP-violation, Phys. Rev. D 72 (2005) 115013 [hep-ph/0408011] [SPIRES].ADSGoogle Scholar
  9. [9]
    J.F. Gunion and H.E. Haber, Conditions for CP-violation in the general two-Higgs- doublet model, Phys. Rev. D 72 (2005) 095002 [hep-ph/0506227] [SPIRES].ADSGoogle Scholar
  10. [10]
    R. Barbieri and L.J. Hall, Improved naturalness and the two Higgs doublet model, hep-ph/0510243 [SPIRES].
  11. [11]
    G.C. Branco, M.N. Rebelo and J.I. Silva-Marcos, CP-odd invariants in models with several Higgs doublets, Phys. Lett. B 614 (2005) 187 [hep-ph/0502118] [SPIRES].ADSGoogle Scholar
  12. [12]
    R. Barbieri, L.J. Hall and V.S. Rychkov, Improved naturalness with a heavy Higgs: An alternative road to LHC physics, Phys. Rev. D 74 (2006) 015007 [hep-ph/0603188] [SPIRES].ADSGoogle Scholar
  13. [13]
    C.C. Nishi, CP violation conditions in N-Higgs-doublet potentials, Phys. Rev. D 74 (2006) 036003 [Erratum-ibid. D 76 (2007) 119901] [hep-ph/0605153] [SPIRES].ADSGoogle Scholar
  14. [14]
    I.P. Ivanov, Minkowski space structure of the Higgs potential in 2HDM, Phys. Rev. D 75 (2007) 035001 [Erratum-ibid. D 76 (2007) 039902] [hep-ph/0609018] [SPIRES].ADSGoogle Scholar
  15. [15]
    L. Fromme, S.J. Huber and M. Seniuch, Baryogenesis in the two-Higgs doublet model, JHEP 11 (2006) 038 [hep-ph/0605242] [SPIRES].CrossRefADSGoogle Scholar
  16. [16]
    A. Barroso, P.M. Ferreira and R. Santos, Neutral minima in two-Higgs doublet models, Phys. Lett. B 652 (2007) 181 [hep-ph/0702098] [SPIRES].ADSGoogle Scholar
  17. [17]
    J.M. Gerard and M. Herquet, A twisted custodial symmetry in the two-Higgs-doublet model, Phys. Rev. Lett. 98 (2007) 251802 [hep-ph/0703051] [SPIRES].CrossRefADSGoogle Scholar
  18. [18]
    E. Ma and M. Maniatis, Symbiotic Symmetries of the Two-Higgs-Doublet Model, Phys. Lett. B 683 (2010) 33 [arXiv:0909.2855] [SPIRES].ADSGoogle Scholar
  19. [19]
    P.M. Ferreira, H.E. Haber and J.P. Silva, Generalized CP symmetries and special regions of parameter space in the two-Higgs-doublet model, Phys. Rev. D 79 (2009) 116004 [arXiv:0902.1537] [SPIRES].ADSGoogle Scholar
  20. [20]
    F. Mahmoudi and O. Stal, Flavor constraints on the two-Higgs-doublet model with general Yukawa couplings, Phys. Rev. D 81 (2010) 035016 [arXiv:0907.1791] [SPIRES].ADSGoogle Scholar
  21. [21]
    W. Bernreuther and O. Nachtmann, Flavour dynamics with general scalar fields, Eur. Phys. J. C 9 (1999) 319 [hep-ph/9812259] [SPIRES].CrossRefADSGoogle Scholar
  22. [22]
    F. Nagel, New aspects of gauge-boson couplings and the Higgs sector, (2004) [SPIRES].
  23. [23]
    M. Maniatis, A. von Manteuffel, O. Nachtmann and F. Nagel, Stability and symmetry breaking in the general two-Higgs- doublet model, Eur. Phys. J. C 48 (2006) 805 [hep-ph/0605184] [SPIRES].CrossRefADSGoogle Scholar
  24. [24]
    M. Maniatis, A. von Manteuffel and O. Nachtmann, Determining the global minimum of Higgs potentials via Groebner bases - applied to the NMSSM, Eur. Phys. J. C 49 (2007) 1067 [hep-ph/0608314] [SPIRES].CrossRefADSGoogle Scholar
  25. [25]
    M. Maniatis, A. von Manteuffel and O. Nachtmann, CP Violation in the General Two-Higgs-Doublet Model: a Geometric View, Eur. Phys. J. C 57 (2008) 719 [arXiv:0707.3344] [SPIRES].CrossRefADSGoogle Scholar
  26. [26]
    M. Maniatis, A. von Manteuffel and O. Nachtmann, A new type of CP symmetry, family replication and fermion mass hierarchies, Eur. Phys. J. C 57 (2008) 739 [arXiv:0711.3760] [SPIRES].CrossRefADSGoogle Scholar
  27. [27]
    M. Maniatis and O. Nachtmann, On the phenomenology of a two-Higgs-doublet model with maximal CP symmetry at the LHC, JHEP 05 (2009) 028 [arXiv:0901.4341] [SPIRES].CrossRefADSGoogle Scholar
  28. [28]
    D0 collaboration, V.M. Abazov et al., Measurement of γ + b + X and γ + c + X production cross sections in \( p \bar{p} \) collisions ats=1.96 TeV, Phys. Rev. Lett. 102 (2009) 192002 [arXiv:0901.0739] [SPIRES].CrossRefADSGoogle Scholar
  29. [29]
    O. Nachtmann, Elementary Particle Physics: Concepts And Phenomena, Springer, Berlin Germany (1990) [SPIRES].Google Scholar
  30. [30]
    J. Pumplin, A. Belyaev, J. Huston, D. Stump and W.K. Tung, Parton distributions and the strong coupling: CTEQ6AB PDFs, JHEP 02 (2006) 032 [hep-ph/0512167] [SPIRES].CrossRefADSGoogle Scholar

Copyright information

© SISSA, Trieste, Italy 2010

Authors and Affiliations

  1. 1.Institut für Theoretische PhysikHeidelbergGermany

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