Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 9, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP09(2014)101
Keywords
Phenomenological Models; Hadronic Colliders
Categories
Funding
- National Research Foundation of Korea (NRF) grant - Korea government of the Ministry of Education, Science and Technology (MEST) [2011-0029758]
- NRF - MEST [2010-0010916]
- NRF of Korea - MEST [2011-0010294]
- Brain Korea 21 Plus Project
- [NRF-2013R1A1A2061331]
- [NRF-2013R1A1A2064120]
- National Research Foundation of Korea [2010-0010916, 359-2008-1-C00011, 2013R1A1A2064120, 2011-0010294] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Updated LHC data on the new 126 GeV boson during the 7 and 8 TeV runnings strengthen the standard model Higgs boson interpretation further. Through global chi(2) fit analysis, we investigate whether the new particle could be one of the scalar particles in two Higgs doublet models. Four types of the model (I, II, X and Y) are comprehensively studied. Considering the recent analysis on the spin-parity of the new boson, we take two scenarios: it is either the lighter CP-even one or the heavier CP-even one. It is found that the current LHC Higgs data constrain the model quite strongly. Only narrow region along the decoupling line and a separate small island are allowed in Type II, X, and Y. Type I is exceptional with much larger allowed space. We also find that the current data are compatible with the possibility that the light Higgs boson h(0) is hidden in the mass window of 90-100 GeV.
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