Measurement of charged jet production cross sections and nuclear modification in p-Pb collisions at sqrt(sNN) = 5.02 TeV

Submission Date: 
02/03/2015
Article Information
Submission Form
System: 
p-Pb
Energy: 
5.02 TeV
Abstract Plain Text: 

Highly energetic jets are sensitive probes for the kinematics and the topology of high energy collisions.
Jets originate from high-momentum partons that are produced early in the collision and subsequently fragment into collimated sprays of hadrons.
The measurement of jet production in p-Pb collisions provides an ideal tool to study the effects of cold nuclear matter on hadronization and provides constraints for the nuclear parton density functions.
In addition, the measurements of jet properties in p-Pb collisions are also an important reference for Pb-Pb collisions.
In terms of analysis techniques, the exact evaluation of the background from the underlying event is an important ingredient.
As the background is much smaller than in Pb-Pb collisions, the background estimation methods need to be refined.
The jet analysis in p-Pb collisions at sqrt(s_NN) = 5.02 TeV presented in this paper is performed on data taken by the ALICE detector at the LHC in the beginning of 2013.
We present charged jet spectra and their comparison to the spectra from pp collisions.
For this analysis various estimates for the background and its fluctuations have been tested in p-Pb and PYTHIA MC simulations.