Gauge-singlet dark matter in a left-right symmetric model with spontaneous<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>C</mml:mi><mml:mi>P</mml:mi></mml:math>violation

Guo, Wanlei; Wang, Liming; Wu, Yonggang; Zhou, Yu‐Feng

doi:10.1103/physrevd.79.055015

Cited by 22 publications

(12 citation statements)

References 48 publications

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“…(25) 10 . In addition to this, we also perform the analysis 10 A similar study on VL charged lepton search at the ILC is done in Ref. [90].…”

Section: Searches At the Ilcmentioning

confidence: 99%

“…Unfortunately this ∆ 0 L candidate cannot provide the correct relic density, due to small annihilation cross sections [9]. This problem has been cured by introducing an additional gauge singlet [10]. Leptophilic properties of the decaying left-handed triplet Higgs have been explored to explain enhancements in neutrino-induced muon fluxes [11], and further properties of the gauge singlet have been explored in [10].…”

Section: Introductionmentioning

confidence: 99%

“…This problem has been cured by introducing an additional gauge singlet [10]. Leptophilic properties of the decaying left-handed triplet Higgs have been explored to explain enhancements in neutrino-induced muon fluxes [11], and further properties of the gauge singlet have been explored in [10]. LRSMs with fermionic dark matter have also been explored [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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Dark matter and collider studies in the left-right symmetric model with vectorlike leptons

Bahrami

Frank²,

Ghosh

et al. 2017

Phys. Rev. D

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In the context of a left-right symmetric model, we introduce one full generation of vectorlike lepton doublets (both left and right-handed) together with their mirror doublets. We show that the lightest vectorlike neutrino in the model is right-handed, and can serve as the dark matter candidate. We find that the relic density as well as the direct and indirect DM detection bounds are satisfied for a large range of the parameter space of the model. In accordance with the parameter space, we then explore the possibility of detecting signals of the model at both the LHC and the ILC, in the pair production of the associated vectorlike charged leptons which decay into final states including dark matter. A comprehensive analysis of signal and backgrounds shows that the signals at the ILC, especially with polarized beams are likely to be visible for light vectorlike leptons, even with low luminosity, rendering our model highly predictable and experimentally testable.

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“…(25) 10 . In addition to this, we also perform the analysis 10 A similar study on VL charged lepton search at the ILC is done in Ref. [90].…”

Section: Searches At the Ilcmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dark matter and collider studies in the left-right symmetric model with vectorlike leptons

Bahrami

Frank²,

Ghosh

et al. 2017

Phys. Rev. D

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show abstract

“…Considering that QFT classifies particles according to their spin (even or odd half-integers), elementary particles discovered so far all have low spins. Most DM candidates discussed so far in the literature have been assumed to be spin-0 scalars [1][2][3][4][5][6][7] or spin-1/2 spinors [8,9] (for spin-1/2 DM, there are so many papers, here we only cite two effective field analysis papers). Whereas a scalar DM has relatively simple structure and provides possible intimate interplay with the 125 GeV Higgs, a spinor DM extends the traditional observation that matter is composed of spin-1/2 particles.…”

Section: Jhep05(2014)088mentioning

confidence: 99%

“…In this paper, we consider an alternative simple approach by ignoring the conventional messenger role of Z', and instead treat it as pure matter. This approach is similar to the minimal darkon model [1][2][3][4][5][6] where SM is minimally expanded with the addition of a dark scalar (SM+D), except now we replace the scalar darkon D with a single vector DM candidate Z'. The change from the…”

Section: Jhep05(2014)088mentioning

confidence: 99%

Higgsphobic and fermiophobic Z’ as a single dark matter candidate

Chen

Zhang

Wang

et al. 2014

J. High Energ. Phys.

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A spin-1 Z' particle as a single dark matter candidate is investigated by assuming that it does not directly couple to the Higgs boson and standard model fermions and does not mix with the photon and Z boson. The remaining dominant vertices are quartic Z ′ Z ′ ZZ and Z ′ Z ′ W + W − , which can induce effective Z ′ Z ′ qq couplings through standard-model gauge-boson loops. We discuss constraints from the cosmological thermal relic density, and direct and indirect-detection experiments, and find that a dark Z' can only exist above the W boson mass threshold, and the effective quartic coupling of Z ′ Z ′ V V is bounded in the region of 10 −3 ∼ 10 −2 .

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Strongly first order phase transition in the singlet fermionic dark matter model after LUX

Zhou

2014

J. High Energ. Phys.

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Abstract:We investigate an extension of the standard model (SM) with a singlet fermionic dark matter (DM) particle which interacts with the SM sector through a real singlet scalar. The presence of a new scalar provides the possibility of generating a strongly first order phase transition needed for electroweak baryogenesis. Taking into account the latest Higgs search results at the LHC and the upper limits from the DM direct detection experiments especially that from the LUX experiment, and combining the constraints from the LEP experiment and the electroweak precision test, we explore the parameter space of this model which can lead to the strongly first order phase transition. Both the tree-and loop-level barriers are included in the calculations. We find that the allowed mass of the second Higgs particle is in the range ∼ 30-350 GeV. The allowed mixing angle α between the SM-like Higgs particle and the second Higgs particle is constrained to α 28 • . The DM particle mass is predicted to be in the range ∼15-350 GeV. The future XENON1T experiment can rule out a significant proportion of the parameter space of this model. The constraint can be relaxed only when the mass of the SM-like Higgs particle is degenerate with that of the second Higgs particle, or the mixing angle is small enough.

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Gauge-singlet dark matter in a left-right symmetric model with spontaneousCPviolation

Cited by 22 publications

References 48 publications

Dark matter and collider studies in the left-right symmetric model with vectorlike leptons

Dark matter and collider studies in the left-right symmetric model with vectorlike leptons

Higgsphobic and fermiophobic Z’ as a single dark matter candidate

Strongly first order phase transition in the singlet fermionic dark matter model after LUX

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