CMS-PAS-B2G-12-005

CMS-PAS-B2G-12-005
Search for Anomalous Top Quark Pair Production in the Boosted All-Hadronic Final State using pp Collisions at sqrt(s) = 8 TeV
CMS Collaboration
2013

Abstract: A search for new physics in the form of high-mass particles ( $m > 1$ TeV/ $c^2$ ) decaying to highly-energetic top quark-antiquark pairs is performed using 19.6 fb $^{-1}$ of proton-proton collisions at a center-of-mass energy of 8 TeV collected with the CMS detector. A top tagging algorithm is utilized to maintain sensitivity in this high-mass regime, where decay products become highly boosted. Event yields are consistent with the expectation for standard model processes. Exclusion limits are set for several new physics models, including Randall-Sundrum Kaluza-Klein gluon production, and both wide ( $\Gamma_{Z'}/m_{Z'} = 10$ \%) and narrow ( $\Gamma_{Z'}/m_{Z'} = 1$ \%) $Z'$ resonance production, as well as for non-resonant enhancements to the top quark pair production cross section.
Links: CDS record (PDF) ; inSPIRE record ; Public twiki page ; CADI line (restricted) ;

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