Dark two Higgs doublet model

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We perform a detailed study of a specific two Higgs doublet model with a U(1) gauge symmetry, instead of a typical Z(2) discrete symmetry, containing a very light gauge boson Z' (GeV scale or below). The Standard Model (SM) fermions do not carry U(1) charges, but induced couplings to the Z' (called the dark Z) are generated through mixing with the SM neutral gauge bosons. Such a light Z' could explain some astrophysical anomalies as well as the muon g - 2 deviation, and has been the subject of great experimental interest. We consider the scenario in which the 125 GeV SM-like Higgs (H) is the heavier scalar state, and focus on the lighter neutral state (h) as well as charged Higgs. We analyze the constraints on the model from various experiments and predict novel channels to search for these Higgs scalars at the LHC. In particular, experiments looking for lepton jets are among potentially important searches.
Publisher
AMER PHYSICAL SOC
Issue Date
2013-06
Language
English
Article Type
Article
Citation

PHYSICAL REVIEW D, v.87, no.11

ISSN
1550-7998
DOI
10.1103/PhysRevD.87.115009
URI
http://hdl.handle.net/10203/226484
Appears in Collection
PH-Journal Papers(저널논문)
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