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@ARTICLE{Khachatryan:275828,
      author       = {Khachatryan, Vardan and others},
      collaboration = {{CMS Collaboration}},
      title        = {{S}earch for the production of dark matter in association
                      with top-quark pairs in the single-lepton final state in
                      proton-proton collisions at $\sqrt s$ = 8 {T}e{V}},
      journal      = {Journal of high energy physics},
      volume       = {2015},
      number       = {6},
      issn         = {1029-8479},
      address      = {Berlin},
      publisher    = {Springer},
      reportid     = {PUBDB-2015-04259, CMS-B2G-14-004. CERN-PH-EP-2015-087.
                      arXiv:1504.03198},
      pages        = {121},
      year         = {2015},
      note         = {OA},
      abstract     = {A search is presented for particle dark matter produced in
                      association with a pair of top quarks in pp collisions at a
                      centre-of-mass energy of $ \sqrt{s}=8 $ TeV. The data were
                      collected with the CMS detector at the LHC and correspond to
                      an integrated luminosity of 19.7 fb$^{−1}$. This search
                      requires the presence of one lepton, multiple jets, and
                      large missing transverse energy. No excess of events is
                      found above the SM expectation, and upper limits are derived
                      on the production cross section. Interpreting the findings
                      in the context of a scalar contact interaction between
                      fermionic dark matter particles and top quarks, lower limits
                      on the interaction scale are set. These limits are also
                      interpreted in terms of the dark matter-nucleon scattering
                      cross sections for the spin-independent scalar operator and
                      they complement direct searches for dark matter particles in
                      the low mass region.},
      keywords     = {p p: scattering (INSPIRE) / p p: colliding beams (INSPIRE)
                      / dark matter: associated production (INSPIRE) / top: pair
                      production (INSPIRE) / dark matter: mass: low (INSPIRE) /
                      jet: multiplicity (INSPIRE) / fermion: dark matter (INSPIRE)
                      / scale: interaction (INSPIRE) / operator: scalar (INSPIRE)
                      / transverse energy: missing-energy (INSPIRE) / contact
                      interaction (INSPIRE) / channel cross section: upper limit
                      (INSPIRE) / CERN LHC Coll (INSPIRE) / final state: ((n)jet
                      lepton) (INSPIRE) / CMS (INSPIRE) / experimental results
                      (INSPIRE) / 8000 GeV-cms (INSPIRE)},
      cin          = {CMS},
      ddc          = {530},
      cid          = {I:(DE-H253)CMS-20120731},
      pnm          = {611 - Fundamental Particles and Forces (POF3-611)},
      pid          = {G:(DE-HGF)POF3-611},
      experiment   = {EXP:(DE-H253)LHC-Exp-CMS-20150101},
      typ          = {PUB:(DE-HGF)16 / PUB:(DE-HGF)15},
      eprint       = {1504.03198},
      howpublished = {arXiv:1504.03198},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:1504.03198;\%\%$},
      doi          = {10.1007/JHEP06(2015)121},
      url          = {https://bib-pubdb1.desy.de/record/275828},
}