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

• Main Authors: Sirunyan, A. M., Tumasyan, A. R., Adam, Wolfgang, Ambrogi, Federico, Asilar, Ece, Md. Ali, Mohd. Adli
• Format: Article
• Language: English; English; English
• Published: Elsevier B.V. 2019
• Subjects: Q Science (General); QC Physics
• Online Access: http://irep.iium.edu.my/71804/1/71804_Measurement%20of%20differential%20cross%20sections%20for%20Z%20boson_article.pdf; http://irep.iium.edu.my/71804/2/71804_Measurement%20of%20differential%20cross%20sections%20for%20Z%20boson_wos.pdf; http://irep.iium.edu.my/71804/3/71804_Measurement%20of%20differential%20cross%20sections%20for%20Z%20boson_scopus.pdf; http://irep.iium.edu.my/71804/; https://reader.elsevier.com/reader/sd/pii/S0370269318308451?token=AC98B8E44758C1FED2E08B9C61B77309EB0208DF7B27145B71796613E0A6792177F8E430D29E7F6A4705DC8FD08AF990

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.