Measurement of the W+W and ZZ production cross sections in pp collisions at √s = 8 TeV

S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, E. Aguilo, T. Bergauer, M. Dragicevic, J. Erö, C. Fabjan, M. Friedl, R. Frühwirth, V. M. Ghete, N. Hörmann, J. Hrubec, M. Jeitler, W. Kiesenhofer, V. Knünz, M. Krammer, I. KrätschmerD. Liko, I. Mikulec, M. Pernicka, D. Rabady, B. Rahbaran, C. Rohringer, H. Rohringer, R. Schöfbeck, J. Strauss, A. Taurok, W. Waltenberger, C. E. Wulz, V. Mossolov, N. Shumeiko, J. Suarez Gonzalez, S. Alderweireldt, M. Bansal, S. Bansal, T. Cornelis, E. A. De Wolf, X. Janssen, S. Luyckx, L. Mucibello, S. Ochesanu, B. Roland, R. Rougny, H. Van Haevermaet, P. Van Mechelen, N. Van Remortel, A. Radi, CMS Collaboration

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Abstract

The W+W and ZZ production cross sections are measured in proton-proton collisions at √s = 8 TeV with the CMS experiment at the LHC in data samples corresponding to an integrated luminosity of up to 5.3 fb−1. The measurements are performed in the leptonic decay modes W+W → ℓ′νℓ″ν and ZZ → 2ℓ2ℓ′, where ℓ = e, μ and ℓ′(ℓ″) = e, μ, τ. The measured cross sections σ (pp → W+W) = 69.9 ± 2.8 (stat.) ± 5.6 (syst.) ± 3.1 (lum.) pb and σ (pp → ZZ) = 8.4 ± 1.0 (stat.) ± 0.7 (syst.) ± 0.4 (lum.) pb, for both Z bosons produced in the mass region 60 < mZ < 120 GeV, are consistent with standard model predictions. These are the first measurements of the diboson production cross sections at √s=8 TeV.

Original languageEnglish
Pages (from-to)190-211
Number of pages22
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume721
Issue number4-5
DOIs
Publication statusPublished - Apr 25 2013

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Keywords

  • CMS
  • Physics
  • W and Z pair production

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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