13-19 May 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

Prompt photon production and photon-jet correlations at the LHC

15 May 2018, 17:00
2h 40m
First floor and third floor (Palazzo del Casinò)

First floor and third floor

Palazzo del Casinò

Poster Electromagnetic and weak probes Poster Session

Speaker

Hendrik Poppenborg (Westfaelische Wilhelms-Universitaet Muenster (DE))

Description

Next-to-leading order predictions matched to parton showers are compared with recent ATLAS data on inclusive photon production and CMS data on associated photon and jet production in pp and pPb collisions at different centre-of-mass energies of the LHC. We find good agreement and, as expected, considerably reduced scale uncertainties compared to previous theoretical calculations. Predictions are made for the ratio of inclusive photons over decay photons R_γ, an important quantity to evaluate the significance of additional photon sources, e.g. thermal radiation from a Quark-Gluon-Plasma, and for distributions in the parton momentum fraction in lead ions x_obs, that could be determined by ALICE, ATLAS, CMS and LHCb in ongoing analyses of photon+jet production in pPb collisions at √s_NN = 5.02 TeV. These data should have an important impact on the determination of nuclear effects such as shadowing at low x.

Centralised submission by Collaboration Presenter name already specified
Content type Theory

Primary author

Hendrik Poppenborg (Westfaelische Wilhelms-Universitaet Muenster (DE))

Co-authors

Michael Klasen Christian Klein-Boesing (Westfaelische Wilhelms-Universitaet Muenster (DE))

Presentation Materials

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