Study of Hadronic Event-Shape Variables in Multijet Final States in pp Collisions at square root s=7TeV.

Technical Information Center Oak Ridge Tennessee

关键词: Hadrons;    Proton-proton interactions;    Jets;    Luminosity;    Monte Carlo method;   

RP-ID  :  DE141156530

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Event-shape variables, which are sensitive to perturbative and nonperturbative aspects of quantum chromodynamic (QCD) interactions, are studied in multijet events recorded in proton-proton collisions at square root s=7 TeV. Events are selected with at least one jet with transverse momentum pT greater than 110 GeV and pseudorapidity bar eta bar less than 2.4, in a data sample corresponding to integrated luminosities of up to 5fb(sub -1). The distributions of five event-shape variables in various leading jet pT ranges are compared to predictions from different QCD Monte Carlo even generators.