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Photon-hadron and photon-photon collisions in CMS (including data from p-p, p-A and A-A collisions)
Photon-nucleus and photon-photon collisions are abundantly produced at the LHC. The LHC provides a unique opportunity to study high-energy photon-photon interactions, thanks to its high energy and large integrated luminosity. In this talk two CMS analyses concerning photon-hadron an...
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Lenguaje: | eng |
Publicado: |
2015
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Materias: | |
Acceso en línea: | http://cds.cern.ch/record/2063475 |
Sumario: | Photon-nucleus and photon-photon collisions are abundantly produced at the LHC. The LHC provides a unique opportunity to study high-energy photon-photon interactions, thanks to its high energy and large integrated luminosity. In this talk two CMS analyses concerning photon-hadron and photon-photon collisions are going to be presented. The first deals with the measurement of the coherent $J/\Psi$ photoproduction cross section in ultra-peripheral PbPb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV in conjunction with forward neutrons. The second one shows the evidence of the exclusive $\gamma \gamma \to W^{+}W^{-}$ production and improvement on constraints for the anomalous gauge quartic coupling $\gamma \gamma WW$ parameters. |
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