Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-10-02
Phys.Rev. D65 (2002) 034011
Physics
High Energy Physics
High Energy Physics - Phenomenology
22 pages, 15 figures; 3 references added, one figure modified for clarity
Scientific paper
10.1103/PhysRevD.65.034011
The production of pairs of hadrons in hadronic collisions is studied using a next-to-leading-order Monte Carlo program based on the phase space slicing technique. Up-to-date fragmentation functions based on fits to LEP data are employed, together with several versions of current parton distribution functions. Good agreement is found with data for the dihadron mass distribution. A comparison is also made with data for the dihadron angular distribution. The scale dependence of the predictions and the dependence on the choices made for the fragmentation and parton distribution functions are also presented. The good agreement between theory and experiment is contrasted to the case for single $\pi^0$ production where significant deviations between theory and experiment have been observed.
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