Toward (finally!) ruling out Z and Higgs mediated dark matter models

Escudero, Miguel; Berlin, Asher; Hooper, Dan; Lin, Meng

doi:10.1088/1475-7516/2016/12/029

Cited by 177 publications

(200 citation statements)

References 77 publications

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“…More generalized constructions are employed here, and their parameters are fit together with the IEM parameters as described in Section II. Of course, models with light mediators are also interesting, and worthy of investigation in their own right [46][47][48][49][50][51][52][53]. We leave exploration of such theories for future work.…”

Section: A Eft Description Of Dark Matter Interactionsmentioning

confidence: 99%

Dark matter interpretation of the Fermi -LAT observation toward the Galactic Center

et al. 2017

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The center of the Milky Way is predicted to be the brightest region of γ-rays generated by selfannihilating dark matter particles. Excess emission about the Galactic center above predictions made for standard astrophysical processes has been observed in γ-ray data collected by the Fermi Large Area Telescope. It is well described by the square of an NFW dark matter density distribution. Although other interpretations for the excess are plausible, the possibility that it arises from annihilating dark matter is valid. In this paper, we characterize the excess emission as annihilating dark matter in the framework of an effective field theory. We consider the possibility that the annihilation process is mediated by either pseudo-scalar or vector interactions and constrain the coupling strength of these interactions by fitting to the Fermi Large Area Telescope data for energies 1-100 GeV in the 15 • × 15 • region about the Galactic center using self-consistently derived interstellar emission models and point source lists for the region. The excess persists and its spectral characteristics favor a dark matter particle with a mass in the range approximately from 50 to 190 (10 to 90) GeV and annihilation cross section approximately from 1×10 −26 to 4×10 −25 (6×10 −27 to 2×10 −25 ) cm 3 /s for pseudo-scalar (vector) interactions. We map these intervals into the corresponding WIMP-neutron scattering cross sections and find that the allowed range lies well below current and projected direct detection constraints for pseudo-scalar interactions, but are typically ruled out for vector interactions.

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Section: A Eft Description Of Dark Matter Interactionsmentioning

confidence: 99%

Dark matter interpretation of the Fermi -LAT observation toward the Galactic Center

et al. 2017

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“…Note that for the purpose of exclusion we have used their experimental values corresponding to 2σ deviations to their central values, which is different from refs. [38,39]. Consequently, the ability of exclusion is expected to be stronger in our discussions.…”

Section: Direct Detectionmentioning

confidence: 84%

“…[38] and ref. [39] for the model A and B, respectively. Consider that the self-interaction of DM is decoupled from the signals at JHEP03(2017)142 [36] are shown simultaneously, and the yellow band refers to 2σ deviation to their central values that were chosen by authors in refs.…”

Section: Direct Detectionmentioning

confidence: 99%

Scalar dark matter: real vs complex

Zheng

2017

J. High Energ. Phys.

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We update the parameter spaces for both a real and complex scalar dark matter via the Higgs portal. In the light of constraints arising from the LUX 2016 data, the latest Higgs invisible decay and the gamma ray spectrum, the dark matter resonant mass region is further restricted to a narrow window between 54.9−62.3 GeV in both cases, and its large mass region is excluded until 834 GeV and 3473 GeV for the real and complex scalar, respectively.

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“…Therefore, S can be a viable dark matter candidate. The current viable parameter space is that the dark matter mass is close to 62.5 GeV via Higgs resonance for small k (k ∼ 0.06 or smaller), or the dark matter mass is larger than about 450 GeV for relatively large k ∼ 0.2 [63,64]. Let us give a benchmark point with f = 10.0 M Pl .…”

Section: Dark Matter and Inflationmentioning

confidence: 99%

The minimal GUT with inflaton and dark matter unification

Chen

Gogoladze

et al. 2018

Eur. Phys. J. C

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Giving up the solutions to the fine-tuning problems, we propose the non-supersymmetric flipped SU (5) × U (1) X model based on the minimal particle content principle, which can be constructed from the four-dimensional SO(10) models, five-dimensional orbifold SO(10) models, and local F-theory SO(10) models. To achieve gauge coupling unification, we introduce one pair of vector-like fermions, which form a complete SU (5) × U (1) X representation. The proton lifetime is around 5 × 10 35 years, neutrino masses and mixing can be explained via the seesaw mechanism, baryon asymmetry can be generated via leptogenesis, and the vacuum stability problem can be solved as well. In particular, we propose that inflaton and dark matter particles can be unified to a real scalar field with Z 2 symmetry, which is not an axion and does not have the non-minimal coupling to gravity. Such a kind of scenarios can be applied to the generic scalar dark matter models. Also, we find that the vector-like particle corrections to the B 0 s masses might be about 6.6%, while their corrections to the K 0 and B 0 d masses are negligible.

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Toward (finally!) ruling out Z and Higgs mediated dark matter models

Abstract: In recent years, direct detection, indirect detection, and collider experiments

Cited by 177 publications

References 77 publications

Dark matter interpretation of the Fermi -LAT observation toward the Galactic Center

Dark matter interpretation of the Fermi -LAT observation toward the Galactic Center

Scalar dark matter: real vs complex

The minimal GUT with inflaton and dark matter unification

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