Study of gamma-gamma interactions in pPb collisions at LHC with CMS

20 May 2014, 16:30
2h
spectrum (darmstadtium)

spectrum

darmstadtium

Board: C-01
Poster Initial State Physics Poster session

Speaker

Melike Akbiyik (KIT - Karlsruhe Institute of Technology (DE))

Description

Di-lepton production in photon-photon collisions is a benchmark process that allow for precise determination of the luminosity at the LHC. In particular in collisions, where at least one of the nuclei is a lead nucleus, the photon fluxes are large enough to make efficient use of it. In this analysis di-muon production during the pPb run in 2013 is analysed using dedicated triggers. Any hadronic contribution is removed by stringent exclusivity requirements. Yields of selected di-muon events are compared to high precision theoretical calculations of electromagnetic particle production from photon-photon collisions in the very periphery of the colliding nuclei.
On behalf of collaboration: CMS

Author

Melike Akbiyik (KIT - Karlsruhe Institute of Technology (DE))

Presentation materials