Document Type
Article
Publication Title
Journal of High Energy Physics
Abstract
A search is presented for standard model (SM) production of four top quarks (t¯tt¯t) in pp collisions in the lepton + jets channel. The data correspond to an integrated luminosity of 19.6 fb−1 recorded at a centre-of-mass energy of 8TeV with the CMS detector at the CERN LHC. The expected cross section for SM t¯tt¯t production is SM t¯tt¯t 1 fb. A combination of kinematic reconstruction and multivariate techniques is used to distinguish between the small signal and large background. The data are consistent with expectations of the SM, and an upper limit of 32 fb is set at a 95% confidence level on the cross section for producing four top quarks in the SM, where a limit of 32 ± 17 fb is expected.
DOI
doi.org/10.1007/JHEP11(2014)154
Publication Date
11-2014
Recommended Citation
The CMS collaboration., Khachatryan, V., Sirunyan, A.M. et al. Search for standard model production of four top quarks in the lepton + jets channel in pp collisions at s√=8 TeV. J. High Energ. Phys. 2014, 154 (2014). https://doi.org/10.1007/JHEP11(2014)154