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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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Detalles Bibliográficos
Autor principal: Rebello Teles, Patricia
Lenguaje:eng
Publicado: 2015
Materias:
Acceso en línea:http://cds.cern.ch/record/2063475
Descripción
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.