Exploring triplet-quadruplet fermionic dark matter at the LHC and future colliders

Wang, Jin-Wei; Bi, Xiao-Jun; Xiang, Qian-Fei; Yin, Peng-Fei; Yu, Zhao-Huan

doi:10.1103/physrevd.97.035021

Cited by 19 publications

(14 citation statements)

References 100 publications

(131 reference statements)

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“…While the former region is hard to probe experimentally, the latter can partly be tested by current observations of cosmic-ray antiprotons as well as future gamma-ray observations. [15,16]. More commonly, however, particle DM models with a pseudoscalar mediator [17][18][19][20][21][22] leads to a momentum-suppressed DM-nucleon cross section.…”

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confidence: 99%

Global fit of pseudo-Nambu-Goldstone Dark Matter

Arina

Beniwal

Degrande

et al. 2020

J. High Energ. Phys.

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We perform a global fit within the pseudo-Nambu-Goldstone dark matter (DM) model emerging from an additional complex scalar singlet with a softly broken global U (1) symmetry. Leading to a momentum-suppressed DM-nucleon cross section at tree level, the model provides a natural explanation for the null results from direct detection experiments. Our global fit combines constraints from perturbative unitarity, DM relic abundance, Higgs invisible decay, electroweak precision observables and latest Higgs searches at colliders. The results are presented in both frequentist and Bayesian statistical frameworks. Furthermore, post-processing our samples, we include the likelihood from gamma-ray observations of Fermi-LAT dwarf spheroidal galaxies and compute the one-loop DM-nucleon cross section. We find two favoured regions characterised by their dominant annihilation channel: the Higgs funnel and annihilation into Higgs pairs. Both are compatible with current Fermi-LAT observations, and furthermore, can fit the slight excess observed in four dwarfs in a mass range between about 30-300 GeV. While the former region is hard to probe experimentally, the latter can partly be tested by current observations of cosmic-ray antiprotons as well as future gamma-ray observations. [15,16]. More commonly, however, particle DM models with a pseudoscalar mediator [17][18][19][20][21][22] leads to a momentum-suppressed DM-nucleon cross section. Thus, this class of models can naturally evade the strong limits from direct detection experiments.A popular example in this regards is the pseudo-Nambu-Goldstone (pNG) DM. It is realised by adding a complex scalar singlet with a softly broken global U (1) symmetry [23-25] to the Standard Model (SM) particle content. Due to the soft symmetry breaking, the resulting Goldstone becomes massive, i.e., a pNG boson. An additional CP symmetry ensures the stability of the pNG boson, which serves as a viable DM candidate. The Goldstone nature of the DM particle implies that the pNG DM-nucleon cross section is momentum-suppressed at tree-level. 1 Thus, a pNG DM model offers a natural way of evading the strong direct detection limits. A leading-order contribution to the pNG DM-nucleon cross section in the zero-momentum limit appears at the one-loop level [27,28]. For typical DM velocities in our galaxy, v χ ∼ 10 −3 , it can easily dominate over the tree-level contribution. The one-loop cross section can vary by several orders of magnitude in the allowed model parameter space. It has been shown that for parameter points which satisfy the relic density constraint, the one-loop cross section is typically below ∼ 10 −50 cm 2 [27] and thus beyond the expected reach of future direct detection experiments, e.g., LUX-ZEPLIN (LZ) [29] and DARWIN [30].More recently, the pNG DM model was confronted against the constraints from perturbative unitarity, DM relic density, Higgs invisible decay, XENON1T, Fermi-LAT dwarf spheroidal (dSph) galaxies [31] and LHC searches at √ s = 13 TeV [25,[32][33][34]. Projected limits from DA...

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confidence: 99%

Global fit of pseudo-Nambu-Goldstone Dark Matter

Arina

Beniwal

Degrande

et al. 2020

J. High Energ. Phys.

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“…In the TQFDM model [27,30,39], the dark sector involves one colorless left-handed Weyl triplet T and two colorless left-handed Weyl quadruplets Q 1 and Q 2 , obeying the following (SU(2) L , U(1) Y gauge transformations:…”

Section: Tqfdm Modelmentioning

confidence: 99%

“…After the EWSB, the triplet will mix with the quadruplets due to the Yukawa coupling terms. More details can be found in our previous work [39]. The two-loop β-functions in the MS scheme are listed in Appendix A 3.…”

Section: Tqfdm Modelmentioning

confidence: 99%

Impact of fermionic electroweak multiplet dark matter on vacuum stability with one-loop matching

Wang

Yin

et al. 2019

Phys. Rev. D

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We investigate the effect of fermionic electroweak multiplet dark matter models on the stability of the electroweak vacuum using two-loop renormalization group equations (RGEs) and one-loop matching conditions. Such a treatment is crucial to obtain reliable conclusions, compared with one-loop RGEs and tree-level matching conditions. In addition, we find that the requirement of perturbativity up to the Planck scale would give strong and almost massindependent constraints on the Yukawa couplings in the dark sector. We also evaluate these models via the idea of finite naturalness for the Higgs mass fine-tuning issue. * wangjinwei@ihep.ac.cn † bixj@ihep.ac.cn ‡ yinpf@ihep.ac.cn §

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“…One possibility is that there are some blind spots with particular parameters leading to the suppression of the DM couplings relevant to direct detection [7][8][9][10][11]. Additionally, the relevant DM couplings could vanish due to special symmetries [12][13][14][15][16][17]. Moreover, DM-nucleon scattering mediated by pseudoscalars can evade direct detection constraints [18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Pseudo-Nambu-Goldstone dark matter and two-Higgs-doublet models

Jiang

Cai

et al. 2019

Phys. Rev. D

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We study a dark matter model with one singlet complex scalar and two Higgs doublets. The scalar potential respects a softly broken global symmetry, which makes the imaginary part of the singlet become a pseudo-Nambu-Goldstone boson acting as a dark matter candidate. The pseudo-Nambu-Goldstone nature of the boson leads to the vanishing of its tree-level scattering amplitude off nucleons at zero momentum transfer. Therefore, although the interaction strength could be sufficient large to yield a viable relic abundance via thermal mechanism, direct detection is incapable of probing this candidate. We further investigate the constraints from Higgs measurements, relic abundance observation, and indirect detection. *

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Exploring triplet-quadruplet fermionic dark matter at the LHC and future colliders

Cited by 19 publications

References 100 publications

Global fit of pseudo-Nambu-Goldstone Dark Matter

Global fit of pseudo-Nambu-Goldstone Dark Matter

Impact of fermionic electroweak multiplet dark matter on vacuum stability with one-loop matching

Pseudo-Nambu-Goldstone dark matter and two-Higgs-doublet models

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