Autor(es):
CMS collaboration (2304 authors) ; Hollar, Jonathan ; Calpas, Betty ; Nayak, Aruna ; Bargassa, Pedrame ; Beirão Da Cruz E Silva, Cristóvão ; Di Francesco, Agostino ; Faccioli, Pietro ; Ferreira Parracho, Pedro Guilherme ; Gallinaro, Michele ; Leonardo, Nuno ; Lloret Iglesias, Lara ; Nguyen, Federico ; Rodrigues Antunes, Joao ; Seixas, Joao ; Toldaiev, Oleksii ; Vadruccio, Daniele ; Varela, Joao ; Vischia, Pietro ; David Tinoco Mendes, Andre ; Silva, Pedro ; Musella, Pasquale ; Pela, Joao
Data: 2016
Origem: Laboratório de Instrumentação e Física Experimental de Partículas
Descrição
The cross section for $\mathrm{t}\overline{{\mathrm{t}}}$ production in the all-jets final state is measured in pp collisions at a centre-of-mass energy of 8 $\,\text {TeV}$ at the LHC with the CMS detector, in data corresponding to an integrated luminosity of 18.4 $\,\text {fb}^{-1}$ . The inclusive cross section is found to be $275.6 \pm 6.1 \,\text {(stat)} \pm 37.8 \,\text {(syst)} \pm 7.2 \,\text {(lumi)} $ $\text {\,pb}$ . The normalized differential cross sections are measured as a function of the top quark transverse momenta, $p_{\mathrm {T}}$ , and compared to predictions from quantum chromodynamics. The results are reported at detector, parton, and particle levels. In all cases, the measured top quark $p_{\mathrm {T}}$ spectra are significantly softer than theoretical predictions.
