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Status of the inert doublet model and the role of multileptons at the LHC

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons73447

Lopez-Honorez,  Laura
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

Externe Ressourcen
Volltexte (frei zugänglich)

1206.6316
(Preprint), 865KB

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Zitation

Gustafsson, M., Rydbeck, S., Lopez-Honorez, L., & Lundstrom, E. (2012). Status of the inert doublet model and the role of multileptons at the LHC. Physical Review D, 86(7): 075019, pp. 1-21. doi:10.1103/PhysRevD.86.075019.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0010-0C8F-5
Zusammenfassung
A possible feature of the Inert Doublet Model (IDM) is to provide a dark matter candidate together with an alteration of both direct and indirect collider constraints that allow for a heavy Higgs boson. We study the IDM in light of recent results from Higgs searches at the Large Hadron Collider (LHC) in combination with dark matter direct-detection limits from the XENON experiment. We ask under what conditions the IDM can still accommodate a heavy Higgs boson. We find that IDM scenarios with a Higgs boson in the mass range 160 to 600 GeV are ruled out only when all experimental constraints are combined. For models explaining only a fraction of the DM the limits are weakened, and IDMs with a heavy Higgs are allowed. We discuss the prospects for future detection of such IDM scenarios in the four-lepton plus missing energy channel at the LHC. This signal can show up in the first year of running at \sqrt{s} = 14 TeV, and we present detector-level studies for a few benchmark models.