Search for dark matter particles produced in association with a top quark pair at $\sqrt{s} =$ 13 TeV - INSPIRE

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Search for dark matter particles produced in association with a top quark pair at $\sqrt{s} =$ 13 TeV

CMS

Collaboration

Jul 17, 2018

19 pages

Published in:

Phys.Rev.Lett. 122 (2019) 1, 011803

Published: Jan 11, 2019

e-Print:

1807.06522 [hep-ex]

DOI:

10.1103/PhysRevLett.122.011803

PDG: Dark Matter Particle (

{{\mathit X}^{0}}

) Production in Hadron Collisions

Report number:

CMS-EXO-16-049,
CERN-EP-2018-183

Experiments:

CERN-LHC-CMS

View in:

reference search62 citations

Citations per year

Abstract: (APS)

A search is performed for dark matter particles produced in association with a top quark pair in proton-proton collisions at s=13 TeV. The data correspond to an integrated luminosity of 35.9 fb-1 recorded by the CMS detector at the LHC. No significant excess over the standard model expectation is observed. The results are interpreted using simplified models of dark matter production via spin-0 mediators that couple to dark matter particles and to standard model quarks, providing constraints on the coupling strength between the mediator and the quarks. These are the most stringent collider limits to date for scalar mediators, and the most stringent for pseudoscalar mediators at low masses.

Note:

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/EXO-16-049 (CMS Public Pages)

Elementary Particles and Fields
p p: colliding beams
top: pair production
dark matter: associated production
p p: scattering
mediation
spin: 0
CERN LHC Coll
coupling: scalar
coupling: pseudoscalar

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