Dark Two Higgs Doublet Model

Hye-Sung Lee; Marc Sher

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Dark Two Higgs Doublet Model

Hye-Sung Lee, Marc Sher

High Energy Physics - Phenomenology · Submitted 26 Mar 2013

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We analyze the constraints on the model from various experiments and predict novel channels to search for these Higgs scalars at the LHC.

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What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.10 · human participants 0.02 · controlled comparison 0.03 · randomized assignment 0.01 · states quantitative result 0.39 · compares with prior results 0.09 · mentions code or data availability 0.02.

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We perform a detailed study of a specific Two Higgs Doublet Model (2HDM) with a U(1) gauge symmetry, instead of a typical Z2 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.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We perform a detailed study of a specific Two Higgs Doublet Model (2HDM) with a U(1) gauge symmetry, instead of a typical Z2 discrete symmetry, containing a very light gauge boson Z' (GeV scale or below).	contribution 0.98	0.90	0.07	asserted 0.98
s1	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.	background 0.63	0.25	0.05	asserted 1.00
s2	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.	background 1.00	0.05	0.06	hedged possibility 0.99
s3	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.	contribution 0.68	0.53	0.05	asserted 0.88
s4	We analyze the constraints on the model from various experiments and predict novel channels to search for these Higgs scalars at the LHC.	contribution 0.98	0.92	0.19	asserted 0.97
s5	In particular, experiments looking for lepton-jets are among potentially important searches.	future work 0.64	0.32	0.12	hedged possibility 0.98

What kind of paper the classifier reports this is: theoretical result 0.99 · evidence from analysis of existing data 0.53.

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Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper

Original abstract

We perform a detailed study of a specific Two Higgs Doublet Model (2HDM) with a U(1) gauge symmetry, instead of a typical Z2 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.

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References

Forward citations

Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Muon g-2, Rare Kaon Decays, and Parity Violation from Dark Bosons
hep-ph 2014-02 conditional novelty 6.0 of 10

Destructive interference between kinetic mixing and Z-Zd mass mixing can relax rare kaon decay bounds on a dark boson explaining muon g-2, predicting a low-Q² shift in the weak mixing angle.
Neutrino Masses and Absence of Flavor Changing Interactions in the 2HDM from Gauge Principles
hep-ph 2017-05 conditional novelty 5.0 of 10

An extra gauged U(1) with suitable charges can generate the discrete symmetry that suppresses flavor-changing neutral currents in the Type I Two Higgs Doublet Model while also permitting a seesaw mechanism for neutrin...
Portal Connecting Dark Photons and Axions
hep-ph 2016-11 conditional novelty 5.0 of 10

A dark photon and an axion, when both are present, generate new axion-photon-dark-photon and axion-dark-photon-dark-photon couplings through triangle diagrams, which can be larger than the product of the standard vect...
Dark matter and collider signatures of the MSSM
hep-ph 2013-06 conditional novelty 5.0 of 10

In a nine-parameter MSSM scan, neutralino dark matter consistent with muon g-2 and not yet excluded by LHC electroweak searches sits between 200 and 500 GeV, and the XENON100 bound weakens once a new pion-nucleon sigm...
Higgs Decays as a Window into the Dark Sector
hep-ph 2013-04 conditional novelty 5.0 of 10

Rare Higgs decays into a light dark-sector vector boson are shown to be observable at the 14 TeV LHC for mixing strengths near 10⁻⁵, with the dark boson's polarization distinguishing mass-mixing from loop-induced couplings.

How the literature uses it

25 arXiv papers cite this in 47 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 32 sentences without a confident label

Builds on it 1 paper

We extended the results of the previous works, which used only the leading order terms, to include the higher order terms[Equation ([ref]) coincides with the result in Ref. [ref] .] as they may be crucial in discussing the $W$ boson mass studied in Sec. [ref].

Searching for new physics effects in future $W$ mass and $\sin^2\theta_W (Q^2)$ determinations · Dark $Z$ model · 0.89

Cites it as background 10 papers

In this section, we review the dark $Z$ model proposed in Ref. [ref] and investigated in Refs. [ref] .

Searching for new physics effects in future $W$ mass and $\sin^2\theta_W (Q^2)$ determinations · Dark $Z$ model · 0.94
Models that could give rise to operators $O_A,X$, $O_B,X$, and $Õ_B,X$ have recently been studied, for example, in Refs. [ref] .

Higgs Decays as a Window into the Dark Sector · Parameterization and Setup · 0.93
The details of the scenarios have been extensively examined in previous studies [ref] .

Explaining Belle Data on $B\to K^{(*)}\nu\bar{\nu}$ Decays via Dark $Z$ Resonances · $U(1)_D$ extended Two-Higgs Doublet Models · 0.95

What it cites · 43 sentences without a confident label

Uses the method or tool of 1 paper

We have used a modified version of the code of Ref. [ref] for some of the plots in this section.

Could the LHC two-photon signal correspond to the heavier scalar in two-Higgs-doublet models? · LHC bounds from the $125$ SM-like Higgs · 1.00

Uses data or values from 2 papers

These bounds at $95 %$ CL from ALEPH [ref] , DELPHI [ref] , L3 [ref] , OPAL [ref] collaborations are given in Fig. [ref] (a).

Search for invisibly decaying Higgs bosons in e+e- -> Zoho production at sqrt(s) = 183 - 209 GeV · LEP bounds from associated production of $h$ · 0.99
If a charged Higgs is light enough, one can look for it in top quark decays, but as ATLAS data shows, the lower bound on $tanβ$ in the Type I model is fairly weak, varying from $1$ to $4$ in the mass range of $90 < m_H^± < 140$ when the dominant decay mode is $τ^+ ν$ [ref] .

Search for charged Higgs bosons decaying via H+ -> tau nu in top quark pair events using pp collision data at sqrt(s) = 7 TeV with the ATLAS detector · Decays and detection of Charged Higgs, $H^±$ · 0.88

Compares with 1 paper

($α= 0$ corresponds to the light Higgs $≈$ SM-like Higgs limit.) The Higgs to gauge boson couplings in Eqs. [ref] - [ref] can be read for Ref. [ref] by $cosα↔sinα$, $cosβ↔sinβ$ (or $v_1 ↔v_2$), and overall sign flips for $C_hZZ$, $C_hZZ'$, $C_hZ'Z'$. ] In conventional 2HDMs, one defines $Φ_2$ to be the doublet that couples to the top quark (or, in the Type I 2HDM, to all fermions).

"Dark" Z implications for Parity Violation, Rare Meson Decays, and Higgs Physics · The Model · 0.97

Cites as support 1 paper

As shown in Ref. [ref] , this decay would unacceptably dominate $H$ decays unless $sinα$ was infinitesimally close to $1$.

Could the LHC two-photon signal correspond to the heavier scalar in two-Higgs-doublet models? · LEP bounds from $Z →h Z'$ · 0.97

Cites as background 26 papers

The scenario that the heavy Higgs is the SM-like Higgs in ordinary 2HDMs were discussed in Ref. [ref] .

Could the LHC two-photon signal correspond to the heavier scalar in two-Higgs-doublet models? · LHC bounds from the $125$ SM-like Higgs · 0.91
The phenomenology of the charged Higgs in the ordinary Type I model was recently discussed in Ref. [ref] .

Theory and phenomenology of two-Higgs-doublet models · Decays and detection of Charged Higgs, $H^±$ · 0.91
A good summary of the constraints and sensitivities from various experiments in the $^2 - m_Z'$ parameter-space can be found in Ref. [ref] .

Electroweak Physics at Jefferson Lab · Constraints on $Z'$ properties · 0.89

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