Measurement of differential cross sections for Z boson pair production in association with jets at √s=8 and 13 TeV

Sirunyan, A.M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Caminada, L.; Deiters, K.; Erdmann, W.; Horisberger, R.; Ingram, Q.; Kaestli, H.C.; Kotlinski, D.; Langenegger, U.; Rohe, T.; Wiederkehr, S.A.; Woods, N.

doi:10.1016/j.physletb.2018.11.007

Measurement of differential cross sections for Z boson pair production in association with jets at √s=8 and 13 TeV

Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Asilar E, Bergauer T, Brandstetter J, Dragicevic M, Erö J, Escalante Del Valle A, Caminada L, Deiters K, Erdmann W, Horisberger R, Ingram Q, Kaestli HC, Kotlinski D, Langenegger U, Rohe T, Wiederkehr SA, Woods N, et al.

Citation

Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., … Woods, N. (2019). Measurement of differential cross sections for Z boson pair production in association with jets at √s=8 and 13 TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 789, 19-44. https://doi.org/10.1016/j.physletb.2018.11.007

Persistent URL https://www.dora.lib4ri.ch/psi/islandora/object/psi:27737

This Letter reports measurements of differential cross sections for the production of two Z bosons in association with jets in proton–proton collisions at √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 35.9fb^-1 at 8 and 13 TeV, respectively. The measurements are performed in the leptonic decay modes ZZ → ℓ⁺ℓ^-ℓ^′+ℓ^′-, where ℓ,ℓ^′=e,μ. The differential cross sections as a function of the jet multiplicity, the transverse momentum p_T, and pseudorapidity of the p_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_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.