PHYSICS

Theoretical uncertainties of the inclusive jet cross sections at the LHC experiments at 14 TeV

S. V. Shmatov^a, S. G. Shulga<sup>b

a</sup> Veksler and Baldin Laboratory of High Energy Physics, JINR, Dubna, Russia
^b F. Skorina Gomel State University, Gomel

Abstract: We have studied the theoretical uncertainties in the calculation of the inclusive jet cross section for the LHC experiments using the parton-parton NLO-generator JETRAD (2002) and the library of parton distribution functions LHApdf-5.3.1 for CTEQ65 and CTEQ6A. For beam energy $\sqrt{s} =1.96$ TeV the results are consistent with the original analysis, performed in CDF collaboration. For LHC beam energy $\sqrt{s} =14$ TeV the main theoretical uncertainties are associated with the dependence of the QCD factorization and renormalization scales (15%), with uncertainty of PDF (10%) and parton jet clustering uncertainty (3%).

Keywords: inclusive jet cross section, quantum chromo-dynamics, parton distribution functions, large hadron collider.

UDC: 539.12

Received: 25.10.2010