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Probing compressed dark sectors at 100 TeV in the dileptonic mono-Z channel

Mahbubani, Rakhi; Zurita, José

We examine the sensitivity at a future 100 TeV proton-proton collider to compressed dark sectors whose decay products are invisible due to below-threshold energies and/or small couplings to the Standard Model. Such a scenario could be relevant to models of WIMP dark matter, where the lightest New Physics state is an (isolated) electroweak multiplet whose lowest component is stable on collider timescales. We rely on the additional emission of a hard on-shell Z-boson decaying to leptons, a channel with low background systematics, and include a careful estimate of the real and fake backgrounds to this process in our analysis. We show that an integrated luminosity of 30 ab−1 would allow exclusion of a TeV-scale compressed dark sector with inclusive production cross section 0.3 fb, for 1% background systematic uncertainty and splittings below 5 GeV. This translates to exclusion of a pure higgsino (wino) multiplet with mass of 500 (970) GeV.

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Verlagsausgabe §
DOI: 10.5445/IR/1000089075
Veröffentlicht am 07.01.2019
Zugehörige Institution(en) am KIT Institut für Theoretische Teilchenphysik (TTP)
Institut für Kernphysik (IKP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 1029-8479
KITopen-ID: 1000089075
HGF-Programm 51.01.01 (POF III, LK 01)
Erschienen in Journal of high energy physics
Band 2018
Heft 12
Seiten Article: 92
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Vorab online veröffentlicht am 14.12.2018
Schlagworte Beyond Standard Model; Supersymmetric Standard Model
Nachgewiesen in Scopus
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