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LHC Dark Matter Working Group: Next-generation spin-0 dark matter models

Abe, Tomohiro; Afik, Yoav; Albert, Andreas; Anelli, Christopher R.; Barak, Liron; Bauer, Martin; Behr, J. Katharina; Bell, Nicole F.; Boveia, Antonio; Brandt, Oleg; Busoni, Giorgio; Carpenter, Linda M.; Chen, Yu-Heng; Doglioni, Caterina; Elliot, Alison; Fujiwara, Motoko; Genest, Marie-Helene; Gerosa, Raffaele; Gori, Stefania; Gramling, Johanna; ... mehr

Dark matter (DM) simplified models are by now commonly used by the ATLAS and CMS Collaborations to interpret searches for missing transverse energy (E$_{T}$$^{ miss }$). The coherent use of these models sharpened the LHC DM search program, especially in the presentation of its results and their comparison to DM direct-detection (DD) and indirect-detection (ID) experiments. However, the community has been aware of the limitations of the DM simplified models, in particular the lack of theoretical consistency of some of them and their restricted phenomenology leading to the relevance of only a small subset of E$_{T}$$^{ miss }$ signatures. This document from the LHC Dark Matter Working Group identifies an example of a next-generation DM model, called 2HDM+a, that provides the simplest theoretically consistent extension of the DM pseudoscalar simplified model. A comprehensive study of the phenomenology of the 2HDM+a model is presented, including a discussion of the rich and intricate pattern of mono-X signatures and the relevance of other DM as well as non-DM experiments. Based on our discussions, a set of recommended scans are proposed to explore the parameter space of the 2HDM+a model through LHC searches. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000117943
Veröffentlicht am 30.03.2020
DOI: 10.1016/j.dark.2019.100351
Zitationen: 1
Web of Science
Zitationen: 3
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Theoretische Physik (ITP)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 01.2020
Sprache Englisch
Identifikator ISSN: 2212-6864
KITopen-ID: 1000117943
Erschienen in Physics of the Dark Universe
Band 27
Seiten Art. Nr.: 100351
Nachgewiesen in Web of Science
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