Jet Fragmentation Function in pPb Collisions at sqrt(sNN) = 5.02 TeV and pp Collisions at sqrt(s) = 2.76 and 7 TeV

Jet Fragmentation Function in pPb Collisions at sqrt(sNN) = 5.02 TeV and pp Collisions at sqrt(s) = 2.76 and 7 TeV

CMS

Collaboration

2015

19 pages

Report number:

CMS-PAS-HIN-15-004

Experiments:

CERN-LHC-CMS

View in:

CERN Document Server

pdf

reference search11 citations

Citations per year

Abstract:

The fragmentation function of inclusive jets in the pPb collision at

\sqrt{s_{NN}} = 5.02\:\mathrm{TeV}

is studied, with a dataset corresponding to an integrated luminosity of

31\:\mathrm{nb}^{-1}

. In order to study possible nuclear effects in jet production, this is compared to an pp reference constructed based on the

\sqrt{s} = 2.76\:\mathrm{TeV}

and

\sqrt{s} = 7\:\mathrm{TeV}

data, where the fragmentation function is adjusted to the expected flavor mixture at

\sqrt{s} = 5.02\:\mathrm{TeV}

. The measured pPb fragmentation is found to be consistent with the pp, within the current statistical and systematic uncertainty. This analysis also represents the first CMS measurement of jet fragmentation function at

\sqrt{s} = 7\:\mathrm{TeV}

, and updates the

\sqrt{s} = 2.76\:\mathrm{TeV}

jet fragmentation function using pp track and jet reconstruction.%

Note:

Preliminary results

Data
jet: fragmentation function
jet: production
fragmentation
anti-kT algorithm
track data analysis
statistical
p
lead
nucleus

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