Author(s):
CMS collaboration (2303 authors) ; Nayak, Aruna ; Araujo, Mariana ; Bargassa, Pedrame ; Beirão da Cruz e Silva, Cristóvão ; Di Francesco, Agostino ; Faccioli, Pietro ; Galinhas, Bruno ; Gallinaro, Michele ; Hollar, Jonathan ; Leonardo, Nuno ; Seixas, Joao ; Strong, Giles ; Toldaiev, Oleksii ; Vadruccio, Daniele ; Varela, Joao ; Vischia, Pietro ; David Tinoco Mendes, Andre ; Silva, Pedro ; Musella, Pasquale
Date: 2019
Origin: Laboratório de Instrumentação e Física Experimental de Partículas
Description
This Letter reports measurements of differential cross sections for the production of two Z bosons in association with jets in proton-proton collisions at $\sqrt{s} =$ 8 and 13 TeV. The analysis is based on data samples collected at the LHC with the CMS detector, corresponding to integrated luminosities of 19.7 and 35.9 fb$^{-1}$ at 8 and 13 TeV, respectively. The measurements are performed in the leptonic decay modes ZZ $\to\ell^+ \ell^- \ell'^+ \ell'^-$, where $\ell,\ell' =$ e, $\mu$. The differential cross sections as a function of the jet multiplicity, the transverse momentum $p_\mathrm{T}$, and pseudorapidity of the $p_\mathrm{T}$-leading and subleading jets are presented. In addition, the differential cross sections as a function of variables sensitive to the vector boson scattering, such as the invariant mass of the two $p_\mathrm{T}$-leading jets and their pseudorapidity separation, are reported. The results are compared to theoretical predictions and found in good agreement within the theoretical and experimental uncertainties.
