Search for direct pair production of supersymmetric top quarks decaying to all-hadronic final states in pp collisions at √s = 8 TeV

The CMS collaboration

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Results are reported from a search for the pair production of top squarks, the supersymmetric partners of top quarks, in final states with jets and missing transverse momentum. The data sample used in this search was collected by the CMS detector and corresponds to an integrated luminosity of 18.9fb-1 of proton-proton collisions at a centre-of-mass energy of 8TeV produced by the LHC. The search features novel background suppression and prediction methods, including a dedicated top quark pair reconstruction algorithm. The data are found to be in agreement with the predicted backgrounds. Exclusion limits are set in simplified supersymmetry models with the top squark decaying to jets and an undetected neutralino, either through a top quark or through a bottom quark and chargino. Models with the top squark decaying via a top quark are excluded for top squark masses up to 755GeV in the case of neutralino masses below 200GeV. For decays via a chargino, top squark masses up to 620GeV are excluded, depending on the masses of the chargino and neutralino.

Original languageEnglish
Article number460
JournalEuropean Physical Journal C
Volume76
Issue number8
DOIs
Publication statusPublished - Aug 1 2016

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pair production
Protons
Supersymmetry
quarks
collisions
Luminance
Momentum
Detectors
protons
exclusion
transverse momentum
supersymmetry
center of mass
luminosity
retarding
detectors
decay
predictions
energy

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

Cite this

Search for direct pair production of supersymmetric top quarks decaying to all-hadronic final states in pp collisions at √s = 8 TeV. / The CMS collaboration.

In: European Physical Journal C, Vol. 76, No. 8, 460, 01.08.2016.

Research output: Contribution to journalArticle

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