Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7741
Title: Search for dark matter produced in association with a Higgs boson decaying to ?? or ? + ? - at ?s=13 TeV
Authors: CMS Collaboration
Karapınar, Güler
Keywords: Dark matter
Higgs boson
Particle decays
Leptons
Issue Date: Sep-2018
Publisher: Springer Verlag
Source: Sirunyan, A.M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., Brandstetter, J. ...CMS Collaboration (2018). Search for dark matter produced in association with a Higgs boson decaying to γγ or τ + τ − at √s=13 TeV. Journal of High Energy Physics, 2018(9). doi:10.1007/JHEP09(2018)046
Abstract: A search for dark matter particles is performed by looking for events with large transverse momentum imbalance and a recoiling Higgs boson decaying to either a pair of photons or a pair of τ leptons. The search is based on proton-proton collision data at a center-of-mass energy of 13 TeV collected at the CERN LHC in 2016 and corresponding to an integrated luminosity of 35.9 fb−1. No significant excess over the expected standard model background is observed. Upper limits at 95% confidence level are presented for the product of the production cross section and branching fraction in the context of two benchmark simplified models. For the Z′-two-Higgs-doublet model (where Z′ is a new massive boson mediator) with an intermediate heavy pseudoscalar particle of mass mA = 300 GeV and mDM = 100 GeV, the Z′ masses from 550 GeV to 1265 GeV are excluded. For a baryonic Z′ model, with mDM = 1 GeV, Z′ masses up to 615 GeV are excluded. Results are also presented for the spin-independent cross section for the dark matter-nucleon interaction as a function of the mass of the dark matter particle. This is the first search for dark matter particles produced in association with a Higgs boson decaying to two τ leptons
URI: https://doi.org/10.1007/JHEP09(2018)046
https://hdl.handle.net/11147/7741
ISSN: 1029-8479
1029-8479
Appears in Collections:Mathematics / Matematik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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