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Alkhazov, G.; Badaud, F.; Bazterra, V.; Begalli, M.; Bellantoni, L.; Bernhard, R.; Bertram, I.; Bhatia, S.; Boline, D.; Boos, E. E.; Brandt, A.; Brandt, O.; Buescher, V.; Camacho-Perez, E.; Chakrabarti, S.; Chapon, E.; Chen, G.; Choudhary, B.; Claes, D.; Clutter, J.; Couderc, F.; Demina, R.; Desai, S.; Diehl, H. T.; Ding, P. F.; Dubey, A.; Dutt, S.; Eads, M.; Enari, Y.; Evdokimov, V. N.; Ferbel, T.; Filthaut, F.; Fox, H.; Gavrilov, V.; Geng, W.; Gershtein, Y.; Golovanov, G.; Grivaz, J. -F; Grohsjean, A.; Hebbeker, T.; Hedin, D.; Heredia-De La Cruz, I.; Hesketh, G.; Hynek, V.; Jayasinghe, A.; Jeong, M. S.; Jonsson, P.; Jung, A. W.; Juste, A.; Karmanov, D.; Kasper, P. A.; Kehoe, R.; Khalatyan, N.; Kurca, T.; Landsberg, G.; Lebrun, P.; Lin, D.; Li, Q. Z.; Linnemann, J.; Lipton, R.; Lokajicek, M.; Luna-Garcia, R.; Maciel, A. K. A.; Magana-Villalba, R.; Malyshev, V. L.; Merkin, M.; Meyer, J.; Miconi, F.; Mondal, N. K.; Nayyar, R.; Neal, H. A.; Nunnemann, T.; Parihar, V.; Park, S. K.; Popov, A. V.; Prewitt, M.; Renkel, P.; Ripp-Baudot, I.; Rominsky, M.; Ross, A.; Sanchez-Hernandez, A.; Sanders, M. P.; Savage, G.; Scanlon, T.; Scheglov, Y.; Shivpuri, R. K.; Stark, J.; Strauss, M.; Tuchming, B.; van Leeuwen, W. M.; Varnes, E. W.; Wahl, H. D.; Wang, M. H. L. S.; Weichert, J.; Welty-Rieger, L.; Williams, M. R. J.; Yatsunenko, Y. A.; Ye, W.; Yu, J. M.; Zielinski, M.
Physics letters. B, 2013, Letnik: 721, Številka: 4-5Journal Article
We present the first combined measurement of the rapidity and transverse momentum dependence of dijet azimuthal decorrelations, using the recently proposed quantity R-Delta phi. The variable R-Delta phi measures the fraction of the inclusive dijet events in which the azimuthal separation of the two jets with the highest transverse momenta is less than a specified value of the parameter Delta phi(max). The quantity R-Delta phi is measured in p (p) over bar collisions at root s = 1.96 TeV, as a function of the dijet rapidity interval, the total scalar transverse momentum, and Delta phi(max). The measurement uses an event sample corresponding to an integrated luminosity of 0.7 fb(-1) collected with the DO detector at the Fermilab Tevatron Collider. The results are compared to predictions of a perturbative QCD calculation at next-to-leading order in the strong coupling with corrections for non-perturbative effects. The theory predictions describe the data well, except in the kinematic region of large dijet rapidity intervals and small Delta phi(max).
