Abstract
We examine the level of enhancement that can be achieved in the ZZ and γγ channels for a two-Higgs-doublet model Higgs boson (either the light h or the heavy H) with mass near 125 GeV after imposing all constraints from LEP data, B physics, precision electroweak data, vacuum stability, unitarity and perturbativity. The latter constraints restrict substantially the possibilities for enhancing the gg → h → γγ or gg → H → γγ signal relative to that for the SM Higgs, h SM. Further, we find that a large enhancement of the gg → h → γγ or gg → H → γγ signal in Type II models is possible only if the gg → h → ZZ or gg → H → ZZ mode is even more enhanced, a situation disfavored by current data. In contrast, in the Type I model one can achieve enhanced rates in the γγ final state for the h while having the ZZ mode at or below the SM rate — the largest [gg → h → γγ]/[gg → h SMγγ] ratio found is of order ~ 1.3 when the two Higgs doublet vacuum expectation ratio is tan β = 4 or 20 and the charged Higgs boson has its minimal LEP-allowed value of m H± = 90 GeV.
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References
ATLAS collaboration, Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC, Phys. Lett. B 716 (2012) 1 [arXiv:1207.7214] [INSPIRE].
CMS collaboration, Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC, Phys. Lett. B 716 (2012) 30 [arXiv:1207.7235] [INSPIRE].
ATLAS collaboration, Measurements of the properties of the Higgs-like boson in the two photon decay channel with the ATLAS detector using 25 fb−1 of proton-proton collision data, ATLAS-CONF-2013-012, CERN, Geneva Switzerland (2013).
CMS collaboration, Updated measurements of the Higgs boson at 125 GeV in the two photon decay channel, CMS-PAS-HIG-13-001, in Rencontres de Moriond, La Thuile Italy (2013) [INSPIRE].
TEVNPH (Tevatron New Phenomina and Higgs Working Group), CDF and D0 collaboration, Combined CDF and D0 search for Standard Model Higgs boson production with up to 10.0 fb−1 of data, arXiv:1203.3774 [INSPIRE].
P. Ferreira, R. Santos, M. Sher and J.P. Silva, Could the LHC two-photon signal correspond to the heavier scalar in two-Higgs-doublet models?, Phys. Rev. D 85 (2012) 035020 [arXiv:1201.0019] [INSPIRE].
P. Ferreira, R. Santos, M. Sher and J.P. Silva, Implications of the LHC two-photon signal for two-Higgs-doublet models, Phys. Rev. D 85 (2012) 077703 [arXiv:1112.3277] [INSPIRE].
D.S. Alves, P.J. Fox and N.J. Weiner, Higgs signals in a type I 2HDM or with a sister Higgs, arXiv:1207.5499 [INSPIRE].
H. Cheon and S.K. Kang, Constraining parameter space in type-II two-Higgs doublet model in light of a 125 GeV Higgs boson, arXiv:1207.1083 [INSPIRE].
S. Chang et al., Comprehensive study of two Higgs doublet model in light of the new boson with mass around 125 GeV, arXiv:1210.3439 [INSPIRE].
J.F. Gunion, Y. Jiang and S. Kraml, Could two NMSSM Higgs bosons be present near 125 GeV?, Phys. Rev. D 86 (2012) 071702 [arXiv:1207.1545] [INSPIRE].
P. Ferreira, H.E. Haber, R. Santos and J.P. Silva, Mass-degenerate Higgs bosons at 125 GeV in the two-Higgs-doublet model, arXiv:1211.3131 [INSPIRE].
D. Eriksson, J. Rathsman and O. Stal, 2HDMC: two-Higgs-doublet model calculator, Comput. Phys. Commun. 181 (2010) 833 [INSPIRE].
D. Eriksson, J. Rathsman and O. Stal, 2HDMC: two-Higgs-doublet model calculator physics and manual, Comput. Phys. Commun. 181 (2010) 189 [arXiv:0902.0851] [INSPIRE].
J.F. Gunion and H.E. Haber, The CP conserving two Higgs doublet model: the approach to the decoupling limit, Phys. Rev. D 67 (2003) 075019 [hep-ph/0207010] [INSPIRE].
J.F. Gunion, H.E. Haber, G.L. Kane and S. Dawson, The Higgs hunter’s guide, Front. Phys. 80 (2000) 1 [INSPIRE].
N.G. Deshpande and E. Ma, Pattern of symmetry breaking with two Higgs doublets, Phys. Rev. D 18 (1978) 2574 [INSPIRE].
M. Sher, Electroweak Higgs potentials and vacuum stability, Phys. Rept. 179 (1989) 273 [INSPIRE].
A.W. El Kaffas, W. Khater, O.M. Ogreid and P. Osland, Consistency of the two Higgs doublet model and CP-violation in top production at the LHC, Nucl. Phys. B 775 (2007) 45 [hep-ph/0605142] [INSPIRE].
I. Ginzburg and I. Ivanov, Tree-level unitarity constraints in the most general 2HDM, Phys. Rev. D 72 (2005) 115010 [hep-ph/0508020] [INSPIRE].
OPAL collaboration, G. Abbiendi et al., Decay mode independent searches for new scalar bosons with the OPAL detector at LEP, Eur. Phys. J. C 27 (2003) 311 [hep-ex/0206022] [INSPIRE].
OPAL collaboration, G. Abbiendi et al., Flavor independent h0A0 search and two Higgs doublet model interpretation of neutral Higgs boson searches at LEP, Eur. Phys. J. C 40 (2005) 317 [hep-ex/0408097] [INSPIRE].
G. Branco et al., Theory and phenomenology of two-Higgs-doublet models, Phys. Rept. 516 (2012) 1 [arXiv:1106.0034] [INSPIRE].
Particle Data Group collaboration, J. Beringer et al., Review of particle physics (RPP), Phys. Rev. D 86 (2012) 010001 [INSPIRE].
S.M. Barr and A. Zee, Electric dipole moment of the electron and of the neutron, Phys. Rev. Lett. 65 (1990) 21 [Erratum ibid. 65 (1990) 2920] [INSPIRE].
Muon g-2 collaboration, G. Bennett et al., Measurement of the negative muon anomalous magnetic moment to 0.7 ppm, Phys. Rev. Lett. 92 (2004) 161802 [hep-ex/0401008] [INSPIRE].
F. Brummer, S. Kraml and S. Kulkarni, Anatomy of maximal stop mixing in the MSSM, JHEP 08 (2012) 089 [arXiv:1204.5977] [INSPIRE].
M. Carena, S. Gori, N.R. Shah, C.E. Wagner and L.-T. Wang, Light stau phenomenology and the Higgs γγ rate, JHEP 07 (2012) 175 [arXiv:1205.5842] [INSPIRE].
M. Aoki et al., Light charged Higgs bosons at the LHC in 2HDMs, Phys. Rev. D 84 (2011) 055028 [arXiv:1104.3178] [INSPIRE].
ATLAS collaboration, Search for charged Higgs bosons decaying via H + → τ ν in top quark pair events using pp collision data at \( \sqrt{s}=7 \) TeV with the ATLAS detector, JHEP 06 (2012) 039 [arXiv:1204.2760] [INSPIRE].
CMS collaboration, Search for a light charged Higgs boson in top quark decays in pp collisions at \( \sqrt{s}=7 \) TeV, JHEP 07 (2012) 143 [arXiv:1205.5736] [INSPIRE].
CMS collaboration, Search for the Standard Model Higgs boson decaying to τ pairs in proton-proton collisions at \( \sqrt{s}=7 \) and 8 TeV, CMS-PAS-HIG-13-004, CERN, Geneva Switzerland (2013) [INSPIRE].
W. Altmannshofer, S. Gori and G.D. Kribs, A minimal flavor violating 2HDM at the LHC, Phys. Rev. D 86 (2012) 115009 [arXiv:1210.2465] [INSPIRE].
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ArXiv ePrint: 1211.3580
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Drozd, A., Grzadkowski, B., Gunion, J.F. et al. Two-Higgs-doublet models and enhanced rates for a 125 GeV Higgs. J. High Energ. Phys. 2013, 72 (2013). https://doi.org/10.1007/JHEP05(2013)072
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DOI: https://doi.org/10.1007/JHEP05(2013)072