Future prospects of mass-degenerate Higgs bosons in the CP-conserving two-Higgs-doublet model
AffiliationUniv Arizona, Dept Phys
MetadataShow full item record
PublisherAMER PHYSICAL SOC
CitationBian, L., Chen, N., Su, W., Wu, Y., & Zhang, Y. (2018). Future prospects of mass-degenerate Higgs bosons in the C P-conserving two-Higgs-doublet model. Physical Review D, 97(11), 115007. https://doi.org/10.1103/PhysRevD.97.115007
JournalPHYSICAL REVIEW D
RightsPublished by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at email@example.com.
AbstractThe scenario of two mass-degenerate Higgs bosons within the general two-Higgs-doublet model (2HDM) is revisited. We focus on the global picture when two CP-even Higgs bosons of h and H are nearly mass-degenerate. A global fit to the signal strength of the 125 GeV Higgs measured at the LHC is performed. Based on the best-fit result of the 2HDM mixing angles (alpha, beta), theoretical constraints, charged and CP-odd Higgs boson direct search constraints and the electroweak precision constraints are imposed to the 2HDM parameter space. We present the signal predictions of the (4b, 2b2 gamma) channels for the benchmark models at the LHC 14 TeV runs. We also study the direct Higgs boson pair productions at the LHC, and the Z-associated Higgs boson pair production search at the ILC 500 GeV runs, as well as the indirect probes at the CEPC 250 GeV run. We find that the massdegenerate Higgs boson scenario in the Type-II 2HDM can be fully probed by these future experimental searches.
VersionFinal published version
SponsorsNational Natural Science Foundation of China [11575176, 11605016]; Center for Future High Energy Physics (CFHEP); National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [NRF-2016R1A2B4008759]; Korea Research Fellowship Program through the National Research Foundation of Korea (NRF) - Ministry of Science; ICT [2017H1D3A1A01014046]; Natural Sciences and Engineering Research Council of Canada; Nanjing University ; China Postdoctoral Science Foundation [2017M611771]