Abstract
Expectations for the magnitude of Higgs boson signals in standard Higgs search channels at the LHC relative to Standard Model (SM) expectations are investigated within the framework of various types of CP and flavor conserving two Higgs doublet models (2HDMs). Signals of the SM-like Higgs boson in different classes of 2HDM may be parameterized in terms of particular two-dimensional sub-spaces of the general four-dimensional space of Higgs couplings to the massive vector bosons, top quark, bottom quark, and tau lepton. We find fairly strong correlations among the inclusive di-photon channel and the exclusive di-photon and di-tau channels from vector boson fusion or associated production. Order one deviations from SM expectations in some of these channels could provide discriminating power among various types of 2HDMs. The ratio of exclusive di-photon to di-tau channels is particularly sensitive to deviations from SM expectations. We also emphasize that deviations from SM expectations in standard Higgs search channels may imply observable signals of non-SM-like Higgs bosons in some of these same channels, in particular in di-photon and di-vector boson channels. The results cataloged here provide a roadmap for interpreting standard Higgs search channels in the context of 2HDMs.
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References
CMS collaboration, S. Chatrchyan et al., 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, G. Aad et al., 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].
D. Carmi, A. Falkowski, E. Kuflik and T. Volansky, Interpreting LHC Higgs results from natural new physics perspective, JHEP 07 (2012) 136 [arXiv:1202.3144] [INSPIRE].
A. Azatov, R. Contino and J. Galloway, Model-independent bounds on a light Higgs, JHEP 04 (2012) 127 [arXiv:1202.3415] [INSPIRE].
J. Espinosa, C. Grojean, M. Muhlleitner and M. Trott, Fingerprinting Higgs suspects at the LHC, JHEP 05 (2012) 097 [arXiv:1202.3697] [INSPIRE].
A. Azatov, R. Contino, D. Del Re, J. Galloway, M. Grassi, et al., Determining Higgs couplings with a model-independent analysis of H → γγ, JHEP 06 (2012) 134 [arXiv:1204.4817] [INSPIRE].
J.R. Espinosa, M. Muhlleitner, C. Grojean and M. Trott, Probing for invisible Higgs decays with global fits, JHEP 09 (2012) 126 [arXiv:1205.6790] [INSPIRE].
A. Azatov, S. Chang, N. Craig and J. Galloway, Higgs fits preference for suppressed down-type couplings: implications for supersymmetry, Phys. Rev. D 86 (2012) 075033 [arXiv:1206.1058] [INSPIRE].
A. Azatov, R. Contino and J. Galloway, Contextualizing the Higgs at the LHC, arXiv:1206.3171 [INSPIRE].
D. Carmi, A. Falkowski, E. Kuflik and T. Volansky, Interpreting the Higgs, arXiv:1206.4201 [INSPIRE].
T. Corbett, O. Eboli, J. Gonzalez-Fraile and M. Gonzalez-Garcia, Constraining anomalous Higgs interactions, Phys. Rev. D 86 (2012) 075013 [arXiv:1207.1344] [INSPIRE].
M. Montull and F. Riva, Higgs discovery: the beginning or the end of natural EWSB?, arXiv:1207.1716 [INSPIRE].
S. Banerjee, S. Mukhopadhyay and B. Mukhopadhyaya, New Higgs interactions and recent data from the LHC and the Tevatron, JHEP 10 (2012) 062 [arXiv:1207.3588] [INSPIRE].
M. Klute, R. Lafaye, T. Plehn, M. Rauch and D. Zerwas, Measuring Higgs couplings from LHC data, Phys. Rev. Lett. 109 (2012) 101801 [arXiv:1205.2699] [INSPIRE].
R.S. Gupta, H. Rzehak and J.D. Wells, How well do we need to measure Higgs boson couplings?, Phys. Rev. D 86 (2012) 095001 [arXiv:1206.3560] [INSPIRE].
T. Plehn, D.L. Rainwater and D. Zeppenfeld, Determining the structure of Higgs couplings at the LHC, Phys. Rev. Lett. 88 (2002) 051801 [hep-ph/0105325] [INSPIRE].
E. Contreras-Campana, N. Craig, R. Gray, C. Kilic, M. Park, et al., Multi-lepton signals of the Higgs boson, JHEP 04 (2012) 112 [arXiv:1112.2298] [INSPIRE].
E.L. Berger, Z. Sullivan and H. Zhang, Associated Higgs plus vector boson test of a fermiophobic Higgs boson, Phys. Rev. D 86 (2012) 015011 [arXiv:1203.6645] [INSPIRE].
J. Chang, K. Cheung, P.-Y. Tseng and T.-C. Yuan, Distinguishing various models of the 125 GeV boson in vector boson fusion, arXiv:1206.5853 [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].
A. Arhrib, C.-W. Chiang, D.K. Ghosh and R. Santos, Two Higgs doublet model in light of the standard model H → τ +τ − search at the LHC, Phys. Rev. D 85 (2012) 115003 [arXiv:1112.5527] [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].
A. Arhrib, R. Benbrik and N. Gaur, H → γγ in inert Higgs doublet model, Phys. Rev. D 85 (2012)095021 [arXiv:1201.2644] [INSPIRE].
E. Gabrielli, B. Mele and M. Raidal, Has a fermiophobic Higgs boson been detected at the LHC?, Phys. Lett. B 716 (2012) 322 [arXiv:1202.1796] [INSPIRE].
K. Blum and R.T. D’Agnolo, 2 Higgs or not 2 Higgs, Phys. Lett. B 714 (2012) 66 [arXiv:1202.2364] [INSPIRE].
D. Carmi, A. Falkowski, E. Kuflik and T. Volansky, Interpreting LHC Higgs results from natural new physics perspective, JHEP 07 (2012) 136 [arXiv:1202.3144] [INSPIRE].
A. Barroso, P. Ferreira, R. Santos and J.P. Silva, Probing the scalar-pseudoscalar mixing in the 125 GeV Higgs particle with current data, Phys. Rev. D 86 (2012) 015022 [arXiv:1205.4247] [INSPIRE].
A. Azatov, S. Chang, N. Craig and J. Galloway, Higgs fits preference for suppressed down-type couplings: implications for supersymmetry, Phys. Rev. D 86 (2012) 075033 [arXiv:1206.1058] [INSPIRE].
D. Zeppenfeld, R. Kinnunen, A. Nikitenko and E. Richter-Was, Measuring Higgs boson couplings at the CERN LHC, Phys. Rev. D 62 (2000) 013009 [hep-ph/0002036] [INSPIRE].
M. Dührssen, Prospects for the measurement of Higgs boson coupling parameters in the mass range from 110 - 190 GeV, ATL-PHYS-2003-030 (2003).
M. Dührssen, S. Heinemeyer, H. Logan, D. Rainwater, G. Weiglein and D. Zeppenfeld, Extracting Higgs boson couplings from CERN LHC data, Phys. Rev. D 70 (2004) 113009 [hep-ph/0406323] [INSPIRE].
C. Ruwiedel, N. Wermes and M. Schumacher, Prospects for the measurement of the structure of the coupling of a Higgs boson to weak gauge bosons in weak boson fusion with the ATLAS detector, Eur. Phys. J. C 51 (2007) 385 [INSPIRE].
R. Lafaye, T. Plehn, M. Rauch, D. Zerwas and M. Dührssen, Measuring the Higgs sector, JHEP 08 (2009) 009 [arXiv:0904.3866] [INSPIRE].
S.L. Glashow and S. Weinberg, Natural conservation laws for neutral currents, Phys. Rev. D 15 (1977)1958 [INSPIRE].
G. Branco, P. Ferreira, L. Lavoura, M. Rebelo, M. Sher, et al., Theory and phenomenology of two-Higgs-doublet models, Phys. Rept. 516 (2012) 1 [arXiv:1106.0034] [INSPIRE].
M. Carena, S. Gori, N.R. Shah and C.E. Wagner, A 125 GeV SM-like Higgs in the MSSM and the γγ rate, JHEP 03 (2012) 014 [arXiv:1112.3336] [INSPIRE].
A. Arvanitaki and G. Villadoro, A non standard model Higgs at the LHC as a sign of naturalness, JHEP 02 (2012) 144 [arXiv:1112.4835] [INSPIRE].
B. Batell, S. Gori and L.-T. Wang, Exploring the Higgs portal with 10/fb at the LHC, JHEP 06 (2012) 172 [arXiv:1112.5180] [INSPIRE].
J.F. Gunion, H.E. Haber, G.L. Kane and S. Dawson, The Higgs hunter’s guide, Front. Phys. 80 (2000)1.
LHC Higgs Cross Section Working Group collaboration, S. Dittmaier et al., Handbook of LHC Higgs cross sections: 1. Inclusive observables, arXiv:1101.0593 [INSPIRE].
M. Dine, N. Seiberg and S. Thomas, Higgs physics as a window beyond the MSSM (BMSSM), Phys. Rev. D 76 (2007) 095004 [arXiv:0707.0005] [INSPIRE].
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Craig, N., Thomas, S. Exclusive signals of an extended Higgs sector. J. High Energ. Phys. 2012, 83 (2012). https://doi.org/10.1007/JHEP11(2012)083
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DOI: https://doi.org/10.1007/JHEP11(2012)083