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arXiv · 1208.4927

W, Z and photon production in CMS

Begoña de la Cruz
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Abstract

The production of electroweak bosons (photons, W and Z particles) in PbPb and pp collisions at sqrt(s) = 2.76 TeV per interacting nucleon pair has been measured with the CMS detector at the LHC. Direct photon production is studied using samples of isolated photons. W and Z bosons are reconstructed through their leptonic decay into muons. Their production rate in PbPb data is studied as a function of the centrality of the collision and compared to that in pp interactions, once normalized by the number of binary nucleon-nucleon interactions. The results are also compared to next-to-leading-order perturbative QCD calculations.

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Begoña de la Cruz. 2012-08-28. W, Z and photon production in CMS. https://doi.org/10.1016/j.nuclphysa.2012.12.024

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