Photo-nuclear dijet production in ultra-peripheral Pb+Pb collisions - INSPIRE

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Photo-nuclear dijet production in ultra-peripheral Pb+Pb collisions

ATLAS

Collaboration

Feb 8, 2017

29 pages

Part of Proceedings, 26th International Conference on Ultra-relativistic Nucleus-Nucleus Collisions (Quark Matter 2017) : Chicago, Illinois, USA, February 5-11, 2017

Contribution to:

- Quark Matter 2017

Report number:

ATLAS-CONF-2017-011

Experiments:

CERN-LHC-ATLAS

View in:

CERN Document Server

reference search46 citations

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Abstract:

Ultra-peripheral heavy ion collisions provide a unique opportunity to study the parton distributions in the colliding nuclei via the measurement of photo-nuclear dijet production. An analysis of dijet production in ultra-peripheral

\sqrt{s_{NN}}=5.02

TeV Pb+Pb collisions performed using data collected in 2015 is described. The data set corresponds to a total integrated luminosity of 0.38 nb−1. The ultra-peripheral collisions are selected using a combination of trigger, zero degree calorimeter, and gap requirements. The jets are reconstructed using the anti-kt algorithm. The results of the measurement include cross-sections for photo-nuclear dijet production as a function of different dijet kinematic variables.

Note:

Preliminary results

UPC
ultra-peripheral collisions
photo-nuclear
low x
nuclear parton distribution
NPDF
HEAVYIONS
dijet: production
peripheral
parton

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