Measurement of the Wγ and Zγ< Inclusive Cross Sections in pp Collisions at √s = 7 TeV and Limits on Anomalous Triple Gauge Boson Couplings
Measurements of Wγ and Zγ production in proton-proton collisions at √s = 7 TeV are used to extract limits on anomalous triple gauge couplings. The results are based on data recorded by the CMS experiment at the LHC that correspond to an integrated luminosity of 5.0 fb[superscript −1]. The cross se...
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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Other Authors: | |
Format: | Article |
Language: | en_US |
Published: |
American Physical Society
2014
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Online Access: | http://hdl.handle.net/1721.1/89049 https://orcid.org/0000-0002-3831-9071 https://orcid.org/0000-0003-3106-4894 https://orcid.org/0000-0001-6332-5839 https://orcid.org/0000-0001-8983-2169 https://orcid.org/0000-0002-1260-777X https://orcid.org/0000-0002-9418-6656 https://orcid.org/0000-0002-6047-4211 https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0003-1486-606X https://orcid.org/0000-0001-9236-6621 https://orcid.org/0000-0002-0869-5631 https://orcid.org/0000-0002-1136-6900 |
Summary: | Measurements of Wγ and Zγ production in proton-proton collisions at √s = 7 TeV are used to extract limits on anomalous triple gauge couplings. The results are based on data recorded by the CMS experiment at the LHC that correspond to an integrated luminosity of 5.0 fb[superscript −1]. The cross sections are measured for photon transverse momenta p[γ over T] > 15 GeV, and for separations between photons and final-state charged leptons in the pseudorapidity-azimuthal plane of ΔR(ℓ,γ) > 0.7 in ℓνγ and ℓℓγ final states, where ℓ refers either to an electron or a muon. A dilepton invariant mass requirement of mℓℓ > 50 GeV is imposed for the Zγ process. No deviations are observed relative to predictions from the standard model, and limits are set on anomalous WWγ, ZZγ, and Zγγ triple gauge couplings. |
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