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Advances in High Energy Physics
Volume 2013, Article ID 585809, 11 pages
Research Article

Subjet Multiplicities at LHC Energies and the QCD Color Factor Ratio

Department of Physics, Panjab University, Chandigarh 160014, India

Received 22 August 2013; Revised 3 November 2013; Accepted 5 November 2013

Academic Editor: Kingman Cheung

Copyright © 2013 M. Kaur and Anter P. Kaur. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Subjet multiplicity distributions of two jets with highest transverse momenta are simulated in proton-proton collisions at LHC energies of 7 TeV and 14 TeV. Jets are defined via the software package FastJet version 3.0.3 which includes the implementation of sequential recombination algorithm with a jet size of . Subjets are resolved by rerunning the algorithm on the jets and using the resolution cutoff of . The subjet multiplicity distributions and their average values are measured as a function of the jet momenta and upto rapidities . The results are used to calculate the ratio, .