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Title

Two-particle momentum correlations in jets produced in pp collisions at s√=1.96  TeV

CollaborationWith : Clark, Allan Geoffrey / Hamilton, Andrew / Lefevre, Régis / Sfyrla, Anna / Shreyber, Irina / Vallecorsa, Sofia / Wu, Xin
Published in Physical Review. D. 2008, vol. 77, no. 09, p. 092001
Abstract We present the first measurement of two-particle momentum correlations in jets produced in pp collisions at s√=1.96  TeV. Results are obtained for charged particles within a restricted cone with an opening angle of 0.5 radians around the jet axis and for events with dijet masses between 66 and 563  GeV/c2. A comparison of the experimental data to theoretical predictions obtained for partons within the framework of resummed perturbative QCD in the next-to-leading log approximation shows that the parton momentum correlations survive the hadronization stage of jet fragmentation, giving further support to the hypothesis of local parton-hadron duality. The extracted value of the next-to-leading-log-approximation parton shower cutoff scale Qeff set equal to ΛQCD is found to be (1.4+0.9−0.7)×100  MeV.
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CDF COLLABORATION. Two-particle momentum correlations in jets produced in pp collisions at s√=1.96  TeV. In: Physical Review. D, 2008, vol. 77, n° 09, p. 092001. https://archive-ouverte.unige.ch/unige:38496

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Deposited on : 2014-07-07

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