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

Journal article

We present the first measurement of two-particle momentum correlations in jets produced in pp̄ collisions at s=1.96TeV. 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 563GeV/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 (1.4-0.7+0.9)×100MeV. © 2008 The American Physical Society.

Authors: Aaltonen, T; Adelman, J; Akimoto, T; Albrow, MG; González, B

• Journal: Physical Review D
• Volume: 77
• Issue: 9
• Publication date: 2008-05-16
• DOI: 10.1103/PhysRevD.77.092001
• EISSN: 1550-2368
• ISSN: 1550-7998
• Language: English