CMS-PAS-B2G-15-002

CMS-PAS-B2G-15-002
Search for $\mathrm{ t \bar{t} }$ resonances in boosted semileptonic final states in pp collisions at $\sqrt{s}=$ 13 TeV
CMS Collaboration
March 2016

Abstract: We present a search for the production of heavy resonances decaying into top-antitop quark pairs. The analysis is performed in the lepton+jets channel using 2.6 fb $^{-1}$ of data collected in proton-proton collisions at $\sqrt{s} =$ 13 TeV with the CMS detector. The selection is optimized for heavy resonance masses, where the top quarks have large Lorentz-boosts. This results in non-isolated leptons from the $\mathrm{W} \to \ell \nu$ decay and two or more quarks reconstructed in a single jet from the $\mathrm{t} \to \mathrm{bW} \to \mathrm{bqq'}$ decay. These jets are identified using top-tagging algorithms. No evidence for resonant $\mathrm{ t \bar{t} }$ production is found and upper limits on the production cross section of heavy resonances are set.
Links: CDS record (PDF) ; inSPIRE record ; CADI line (restricted) ;

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