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Search for dark matter particles produced in association with a Higgs boson in proton-proton collisions at $ \sqrt{\mathrm{s}} $ = 13 TeV

CMS Collaboration; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Bergauer, T.; Brandstetter, J.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Flechl, M.; Frühwirth, R.; Jeitler, M.; Krammer, N.; Krätschmer, I.; Liko, D.; Madlener, T.; Mikulec, I.; Rad, N.; Schieck, J.; Schöfbeck, R.; ... mehr

A search for dark matter (DM) particles is performed using events with a Higgs boson candidate and large missing transverse momentum. The analysis is based on protonproton collision data at a center-of-mass energy of 13TeV collected by the CMS experiment at the LHC in 2016, corresponding to an integrated luminosity of 35.9 fb$^{-}$. The search is performed in five Higgs boson decay channels: h → bb̅, γ γ, t$^{+}$t$^{-}$, W$^{+}$W$^{-}$, and ZZ. The results from the individual channels are combined to maximize the sensitivity of the analysis. No significant excess over the expected standard model background is observed in any of the five channels or in their combination. Limits are set on DM production in the context of two simplified models. The results are also interpreted in terms of a spin-independent DM-nucleon scattering cross section and compared to those from directdetection DM experiments. This is the first search for DM particles produced in association with a Higgs boson decaying to a pair of W or Z bosons, and the first statistical combination based on five Higgs boson decay channels.

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Verlagsausgabe §
DOI: 10.5445/IR/1000117588
Veröffentlicht am 09.03.2020
DOI: 10.1007/JHEP03(2020)025
Zitationen: 3
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Institut für Experimentelle Teilchenphysik (ETP)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 03.2020
Sprache Englisch
Identifikator ISSN: 1029-8479
KITopen-ID: 1000117588
Erschienen in Journal of high energy physics
Band 2020
Heft 3
Seiten Article: 25
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Vorab online veröffentlicht am 04.03.2020
Schlagwörter Dark matter, Hadron-Hadron scattering (experiments), Higgs physics
Nachgewiesen in arXiv
Web of Science
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