Search for dark matter in events with a leptoquark and missing transverse momentum in proton-proton collisions at 13 TeV

  • Shimaa Abu Zeid (Creator)
  • Freya Blekman (Creator)
  • Jorgen D'Hondt (Creator)
  • Jarne Theo De Clercq (Creator)
  • Kevin Deroover (Creator)
  • Giannis Flouris (Creator)
  • Denys Lontkovskyi (Creator)
  • Steven Lowette (Creator)
  • Ivan Marchesini (Creator)
  • Seth Moortgat (Creator)
  • Lieselotte Moreels (Creator)
  • Quentin Python (Creator)
  • Kirill Skovpen (Creator)
  • Stefaan Tavernier (Creator)
  • Walter Van Doninck (Creator)
  • Petra Van Mulders (Creator)
  • Isis Marina Van Parijs (Creator)

Dataset

Abstract

A search is presented for dark matter in proton-proton collisions at a center-of-mass energy of √s =
13 TeV using events with at least one high transverse momentum (pT) muon, at least one high-pT jet,
and large missing transverse momentum. The data were collected with the CMS detector at the CERN LHC
in 2016 and 2017, and correspond to an integrated luminosity of 77.4 fb−1. In the examined scenario,
a pair of scalar leptoquarks is assumed to be produced. One leptoquark decays to a muon and a jet
while the other decays to dark matter and low-pT standard model particles. The signature for signal
events would be significant missing transverse momentum from the dark matter in conjunction with
a peak at the leptoquark mass in the invariant mass distribution of the highest pT muon and jet. The
data are observed to be consistent with the background predicted by the standard model. For the first
benchmark scenario considered, dark matter masses up to 500 GeV are excluded for leptoquark masses
mLQ ≈ 1400 GeV, and up to 300 GeV for mLQ ≈ 1500 GeV. For the second benchmark scenario, dark
matter masses up to 600 GeV are excluded for mLQ ≈ 1400 GeV.
Datum van beschikbaarheid12 aug 2019
UitgeverHEPData

Format

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