Measurement of electroweak production of a W boson and two forward jets in proton-proton collisions at √s = 8 TeV

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2016
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Abstract

A measurement is presented of the cross section for the electroweak production of a W boson in association with two jets in proton-proton collisions at a center-of-mass energy of 8 TeV. The data set was collected with the CMS detector and corresponds to an integrated luminosity of 19.3 fb⁻¹. The measured fiducial cross section for W bosons decaying to electrons or muons and for (p_{T}^{j1}) > 60 GeV, (p_{T}^{j2}) > 50 GeV, |(η^{j})| < 4. 7, and (m_{jj}) > 1000 GeV is 0.42 ± 0.04 (stat) ± 0.09 (syst) ± 0.01 (lumi) pb. This result is consistent with the standard model leading-order prediction of 0.50 ± 0.02 (scale) ± 0.02 (PDF) pb obtained with MadGraph5_amc@nlo 2.1 interfaced to pythia 6.4. This is the first cross section measurement for this process.

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High Energy Physics - Experiment, Electroweak interaction, Hadron-Hadron scattering (experiments)
Citation
Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Asilar, E., Bergauer, T., Brandstetter, J., Brondolin, E., Dragicevic, M., Erö, J., Flechl, M., Friedl, M., Frühwirth, R., Ghete, V. M., Hartl, C., Hörmann, N., Hrubec, J., Jeitler, M., … Woods, N. (2016). Measurement of electroweak production of a W boson and two forward jets in proton-proton collisions at s = 8 $ \sqrt{s}=8 $ TeV. In Journal of High Energy Physics (Vol. 2016, Issue 11). Springer Science and Business Media LLC. https://doi.org/10.1007/jhep11(2016)147