Scalar Simplified Models for Dark Matter

By Matthew R. Buckley, David Feld, D. Gonçalves. 2014

247 citations recorded by the source corpus.

We introduce a set of minimal simplified models for dark matter interactions with the Standard Model, connecting the two sectors via either a scalar or pseudoscalar particle. These models have a wider regime of validity for dark matter searches at the LHC than the effective field theory approach, while still allowing straightforward comparison to results from non-collider dark matter detection experiments. Such models also motivate dark matter searches in multiple correlated channels. In this paper, we constrain scalar and pseudoscalar simplified models with direct and indirect detection experiments, as well as from existing LHC searches with missing energy plus tops, bottoms, or jets, using the exact loop-induced coupling with gluons. This calculation significantly affects key differential cross sections at the LHC, and must be properly included. We make connections with the Higgs sector, and conclude with a discussion of future searches at the LHC.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/b2a6eccfd8e107590741dcfa46f21a35b48c87ba

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Citations in the corpus

Recommendations on presenting LHC searches for missing transverse energy signals using simplified s-channel models of dark matter (2016, methodology): “It reflects the feedback obtained from the participants and in subsequent iterations with members of the experiments and of the theory community and it is based on work described recently in [3–9].”
The hunt for the rest of the Higgs bosons (2015, unknown): “[72] obtained a limit on the bb̄-associated invisible scalar channel by reinterpreting an ATLAS effective operator study at 8 TeV [73].”
Constraining Dark Sectors at Colliders: Beyond the Effective Theory Approach (2014, methodology): “[10] appeared, considering scalar and pseudoscalar mediators in the gluon fusion channel and also pointing out the importance of keeping the mediator width a free parameter.”
Dark Matter through the Higgs portal (2019, background): “Although only effective and eventually non–renormalisable, one can adopt this approach as it is rather model–independent and does not make any assumption on the very nature of the DM [54–58, 93–97].”
Physics at a 100 TeV pp collider: Higgs and EW symmetry breaking studies (2016, methodology): “Through mixing with the Higgs, φ picks up coupling to the Standard Model, and thus serves as the bridge between the two sectors (as does the SM Higgs) [354, 361, 362].”