The Sommerfeld enhancement in the scotogenic model with large electroweak scalar multiplets

Chowdhury, Talal Ahmed; Nasri, Salah

doi:10.1088/1475-7516/2017/01/041

Cited by 11 publications

(8 citation statements)

References 112 publications

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“…[246]. The collider [628][629][630][631] and dark matter [632][633][634] phenomenologies of different scotogenic variants have also been discussed in detail. Finally, we point out that the authors of Ref.…”

Section: Field Spinmentioning

confidence: 99%

From the Trees to the Forest: A Review of Radiative Neutrino Mass Models

et al. 2017

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A plausible explanation for the lightness of neutrino masses is that neutrinos are massless at tree level, with their mass (typically Majorana) being generated radiatively at one or more loops. The new couplings, together with the suppression coming from the loop factors, imply that the new degrees of freedom cannot be too heavy (they are typically at the TeV scale). Therefore, in these models there are no large mass hierarchies and they can be tested using different searches, making their detailed phenomenological study very appealing. In particular, the new particles can be searched for at colliders and generically induce signals in lepton-flavor and lepton-number violating processes (in the case of Majorana neutrinos), which are not independent from reproducing correctly the neutrino masses and mixings. The main focus of the review is on Majorana neutrinos. We order the allowed theory space from three different perspectives: (i) using an effective operator approach to lepton number violation, (ii) by the number of loops at which the Weinberg operator is generated, (iii) within a given loop order, by the possible irreducible topologies. We also discuss in more detail some popular radiative models which involve qualitatively different features, revisiting their most important phenomenological implications. Finally, we list some promising avenues to pursue.

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Section: Field Spinmentioning

confidence: 99%

From the Trees to the Forest: A Review of Radiative Neutrino Mass Models

et al. 2017

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“…Future telescopes like CTA as well as additional LAT data will allow to further explore these regions of the parameter space, thus allowing for multi-messenger indirect probes of this model. Finally let us comment that the annihilation cross section of non-relativistic η R at the current epoch can be affected by a non-perturbative correction, the Sommerfeld enhancement [76][77][78][79][80] which would consequently affect also its indirect detection signatures. However, we did not include it in our calculation as a thorough treatment of this effect lies beyond the scope of this paper.…”

Section: Numerical Resultsmentioning

confidence: 99%

Dark matter in a charged variant of the Scotogenic model

De Romeri,

Puerta,

Vicente

2021

Preprint

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Scotogenic models are among the most popular possibilities to link dark matter and neutrino masses. In this work we discuss a variant of the Scotogenic model that includes charged fermions and a doublet with hypercharge 3/2. Neutrino masses are induced at the one-loop level thanks to the states belonging to the dark sector. However, in contrast to the standard Scotogenic model, only the scalar dark matter candidate is viable in this version. After presenting the model and explaining some particularities about neutrino mass generation, we concentrate on its dark matter phenomenology. We show that the observed dark matter relic density can be correctly reproduced in the usual parameter space regions found for the standard Scotogenic model or the Inert Doublet model. In addition, the presence of the charged fermions may open up new regions, provided some tuning of the parameters is allowed.

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“…In this way, scalar DM models can be constructed by extending the scalar sector with an inert scalar multiplet that does not develop a vacuum expectation value (VEV) because of an unbroken Z 2 symmetry. Such extensions with doublet [9,10,12,60], triplet [11,13,15,16,19,21,25,33,[56][57][58], quadruplet [21,37,38,55], quintuplet [11,15,20,42,51], sextuplet [20,23,34], septuplet [11,15,18,20,29,30,51], and octuplet [20,23,34] scalars have been discussed in the literature.…”

Section: Jhep10(2020)212mentioning

confidence: 99%

Inert sextuplet scalar dark matter at the LHC and future colliders

Liu

Cai

et al. 2020

J. High Energ. Phys.

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We study a dark matter model constructed by extending the standard model with an inert SU(2)L sextuplet scalar of hypercharge 1/2. The sextuplet components are split by the quartic couplings between the sextuplet and the Higgs doublet after electroweak symmetry breaking, resulting in a dark sector with one triply charged, two doubly charged, two singly charged, and two neutral scalars. The lighter neutral scalar boson acts as a dark matter particle. We investigate the constraints on this model from the monojet + "Image missing" and soft-dilepton + jets + "Image missing" searches at the 13 TeV Large Hadron Collider, as well as from the current electroweak precision test. Furthermore, we estimate the projected sensitivities of a 100 TeV pp collider and of a future e+e− collider, and find that such future projects could probe TeV mass scales. Nonetheless, such mass scales only correspond to a subdominant component of the observed relic abundance if the dark matter particles solely originate from thermal production.

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The Sommerfeld enhancement in the scotogenic model with large electroweak scalar multiplets

Cited by 11 publications

References 112 publications

From the Trees to the Forest: A Review of Radiative Neutrino Mass Models

From the Trees to the Forest: A Review of Radiative Neutrino Mass Models

Dark matter in a charged variant of the Scotogenic model

Inert sextuplet scalar dark matter at the LHC and future colliders

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