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Indirect bounds on heavy scalar masses of the two-Higgs-doublet model in light of recent Higgs boson searches |
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| Authors: | Shinya Kanemura Hiroyuki Taniguchi |
| Affiliation: | a Department of Physics, The University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan b KEK Theory Center, Institute of Particle and Nuclear Studies, KEK, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan c Department of Particle and Nuclear Physics, The Graduate University for Advanced Studies (Sokendai), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan d Department of Physics and Center for Theoretical Sciences, National Taiwan University, Taipei, Taiwan |
| Abstract: | We study an upper bound on masses of additional scalar bosons from the electroweak precision data and theoretical constraints such as perturbative unitarity and vacuum stability in the two-Higgs-doublet model taking account of recent Higgs boson search results. If the mass of the Standard-Model-like Higgs boson is rather heavy and is outside the allowed region by the electroweak precision data, such a discrepancy should be compensated by contributions from the additional scalar bosons. We show the upper bound on masses of the additional scalar bosons to be about 2 (1) TeV for the mass of the Standard-Model-like Higgs boson to be 240 (500) GeV. |
| Keywords: | Higgs boson |
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