Two higgs doublet models for the LHC higgs boson data at s \sqrt{s} = 7 and 8 TeV

Sanghyeon Chang, Sin Kyu Kang, Jong Phil Lee, Kang Young Lee, Seong Chan Park, Jeonghyeon Song

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

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 χ 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.

Original languageEnglish
Article number140
JournalJournal of High Energy Physics
Volume2014
Issue number9
DOIs
Publication statusPublished - 2014 Sep 30

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Higgs bosons
bosons
decoupling
parity
scalars

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Chang, Sanghyeon ; Kang, Sin Kyu ; Lee, Jong Phil ; Lee, Kang Young ; Park, Seong Chan ; Song, Jeonghyeon. / Two higgs doublet models for the LHC higgs boson data at s \sqrt{s} = 7 and 8 TeV. In: Journal of High Energy Physics. 2014 ; Vol. 2014, No. 9.
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Two higgs doublet models for the LHC higgs boson data at s \sqrt{s} = 7 and 8 TeV. / Chang, Sanghyeon; Kang, Sin Kyu; Lee, Jong Phil; Lee, Kang Young; Park, Seong Chan; Song, Jeonghyeon.

In: Journal of High Energy Physics, Vol. 2014, No. 9, 140, 30.09.2014.

Research output: Contribution to journalArticle

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