Measurement of the jet fragmentation function and transverse profile in proton-proton collisions at a center-of-mass energy of 7 TeV with the ATLAS detector

The ATLAS collaboration
Aad, Georges , Abbott, Brad , Abdallah, Jalal , Abdelalim, Ahmed Ali , Abdesselam, Abdelouahab , Abdinov, Ovsat , Abi, Babak , Abolins, Maris , Abramowicz, Halina , Abreu, Henso
Eur.Phys.J.C 71 (2011) 1795, 2011.

Abstract (data abstract)
CERN-LHC. Measurements of the longitudinal relative momentum distributions of charged particles and their transverse profiles in jets of PT in the range 25-500 GeV produced in proton-proton collisions at a centre-of-mass energy of 7 TeV. The data sample used has a total integrated luminosity of 36 pb-1. Jets are reconstructed using an anti-KT algorithm with the cone radius, R, in eta-phi space equal to 0.6. The measurements of the transverse profile are as a function of r, the separation of the charged particle from the jet axis in azimuth-rapidity space and PTrel, the PT of the charged particle relative to the jet axis.

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