Measurement of the hadronic activity in events with a Z and two jets and extraction of the cross section for the electroweak production of a Z with two jets in pp collisions at √s = 7 TeV
Entity
UAM. Departamento de Física TeóricaPublisher
Springer Verlag; SISSA 2013Date
2013-10-08Citation
10.1007/JHEP10(2013)062
Journal of High Energy Physics 2013.10 (2013): 062
ISSN
1029-8479 (online); 1126-6708 (print)DOI
10.1007/JHEP10(2013)062Editor's Version
http://dx.doi.org/10.1007/JHEP10(2013)062Subjects
Hadron-hadron scattering; FísicaNote
Journal of High Energy Physics 2013.10 (2013): 062 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA)Rights
© SISSA 2013Abstract
The first measurement of the electroweak production cross section of a Z boson with two jets (Zjj) in pp collisions at √s = 7TeV is presented, based on a data sample recorded by the CMS experiment at the LHC with an integrated luminosity of 5fb-1. The cross section is measured for the ℓℓjj (ℓ = e, μ) final state in the kinematic region m ℓℓ > 50 GeV, mjj > 120 GeV, transverse momenta pj T > 25 GeV and pseudorapidity |ηj| < 4.0. The measurement, combining the muon and electron channels, yields σ = 154 ± 24 (stat.) ± 46 (exp. syst.) ± 27 (th. syst.) ± 3 (lum.) fb, in agreement with the theoretical cross section. The hadronic activity, in the rapidity interval between the jets, is also measured. These results establish an important foundation for the more general study of vector boson fusion processes, of relevance for Higgs boson searches and for measurements of electroweak gauge couplings and vector boson scattering
Files in this item
Google Scholar:The CMS collaboration
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Chatrchyan, S.
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Albajar Molera, Carmen
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Fernández Trocóniz Acha, Jorge
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