Simplified models for dark matter face their consistent completions

Gonçalves, Dorival; Machado, Pedro A. N.; No, José Miguel

doi:10.1103/physrevd.95.055027

Cited by 88 publications

(130 citation statements)

References 112 publications

(120 reference statements)

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“…In the same fashion we will account, in our analysis, besides experimental constraints, the theoretical limitations of these frameworks (see e.g., Refs. [151,152,161,162,168] for more extensive discussions. )…”

Section: Model Setup: Dark Portalsmentioning

confidence: 99%

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The waning of the WIMP? A review of models, searches, and constraints

et al. 2018

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Weakly Interacting Massive Particles (WIMPs) are among the best-motivated dark matter candidates. No conclusive signal, despite an extensive search program that combines, often in a complementary way, direct, indirect, and collider probes, has been detected so far. This situation might change in near future due to the advent of one/multi-TON Direct Detection experiments. We thus, find it timely to provide a review of the WIMP paradigm with focus on a few models which can be probed at best by these facilities. Collider and Indirect Detection, nevertheless, will not be neglected when they represent a complementary probe.

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Section: Model Setup: Dark Portalsmentioning

confidence: 99%

“…This idea is at the base of the so-called "Simplified Models" [140][141][142][143][144][145][146][147][148][149][150][151][152][153][154] which are customarily adopted especially in the context of collider studies, see e.g., Refs. [130,[155][156][157][158][159][160][161][162][163][164][165][166].…”

Section: Model Setup: Dark Portalsmentioning

confidence: 99%

The waning of the WIMP? A review of models, searches, and constraints

et al. 2018

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“…By considering such simplified models, it is therefore implicitly assumed that the couplings result from a gauge-invariant scalar sector upon integrating out some of the additional states. However, it has been shown in explicit constructions of gauge invariant models that these additional states can not be arbitrarily heavy without leading to tension with measurements of electroweak precision observables [23,24]. The presence of extra states in the vicinity of the pseudoscalar mediator imply interesting additional signatures of pseudoscalar mediator models.…”

Section: Jhep07(2018)107mentioning

confidence: 99%

“…One example is a UV completion in which a SM singlet pseudoscalar mediator mixes with the combination H † 1 H 2 [23,24],…”

Section: Jhep07(2018)107mentioning

confidence: 99%

Universal properties of pseudoscalar mediators in dark matter extensions of 2HDMs

Bauer

Klassen

Tenorth

2018

J. High Energ. Phys.

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Abstract:We discuss universal signals of consistent models of pseudoscalar mediators for collider searches for Dark Matter. Keeping only the degrees of freedom that can not be decoupled due to consistency conditions, we present a universality class of simplified models with pseudoscalar mediators and renormalizable couplings to Standard Model fields. We compute stability and perturbativity constraints, constraints from electroweak precision measurements, collider searches for new heavy particles as well as constraints from relic density measurements and indirect detection experiments searching for signals of Dark Matter annihilation into photons. We find that the mono-Z final state is the strongest, universal signal of this class of models, with additional signatures present in the different ultraviolet completions that can be used to distinguish between them.

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“…For recent examples and studies of such 'next-to-simplified models' we refer the reader to refs. [43][44][45][46][47][48][49].…”

Section: Jhep06(2017)041mentioning

confidence: 99%

Simplified models of dark matter with a long-lived co-annihilation partner

Khoze

Plascencia

Sakurai

2017

J. High Energ. Phys.

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We introduce a new set of simplified models to address the effects of 3-point interactions between the dark matter particle, its dark co-annihilation partner, and the Standard Model degree of freedom, which we take to be the tau lepton. The contributions from dark matter co-annihilation channels are highly relevant for a determination of the correct relic abundance. We investigate these effects as well as the discovery potential for dark matter co-annihilation partners at the LHC. A small mass splitting between the dark matter and its partner is preferred by the co-annihilation mechanism and suggests that the co-annihilation partners may be long-lived (stable or meta-stable) at collider scales. It is argued that such long-lived electrically charged particles can be looked for at the LHC in searches of anomalous charged tracks. This approach and the underlying models provide an alternative/complementarity to the mono-jet and multi-jet based dark matter searches widely used in the context of simplified models with s-channel mediators. We consider four types of simplified models with different particle spins and coupling structures. Some of these models are manifestly gauge invariant and renormalizable, others would ultimately require a UV completion. These can be realised in terms of supersymmetric models in the neutralino-stau co-annihilation regime, as well as models with extra dimensions or composite models.

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Simplified models for dark matter face their consistent completions

Cited by 88 publications

References 112 publications

The waning of the WIMP? A review of models, searches, and constraints

The waning of the WIMP? A review of models, searches, and constraints

Universal properties of pseudoscalar mediators in dark matter extensions of 2HDMs

Simplified models of dark matter with a long-lived co-annihilation partner

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