PoS - Proceedings of Science
Volume 282 - 38th International Conference on High Energy Physics (ICHEP2016) - Poster Session
Measurement of σ(ttbarbbbar)/σ(ttbarjj) at s = 13 TeV at CMS experiment
Y.k. Jo* on behalf of the CMS collaboration
*corresponding author
Full text: pdf
Pre-published on: February 06, 2017
Published on: April 19, 2017
Abstract
The measurement of the cross section ratio $\sttbb/\sttjj$ is presented using a data sample corresponding to an integrated luminosity of 2.3~$\rm{fb}^{-1}$ collected in pp collisions at \\ $\sqrt{s}$ = 13TeV with the CMS detector at the LHC.
Events with two leptons and at least four reconstructed jets, including at least two identified as b quark jets, in the final state are selected.
The measured ratio is $0.022 \pm 0.003$(stat.)$\pm0.006$(syst.) in the full phase space.
The measured cross section $\sttbb$ is $3.9 \pm 0.6$(stat.)$\pm1.3$(syst.) pb and $\sttjj$ is $176 \pm 5$(stat.)$ \pm 33 $(syst.) pb.
DOI: https://doi.org/10.22323/1.282.0990
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