A Next-to-Leading-Order Study of Dihadron Production

Details A Next-to-Leading-Order Study of Dihadron Production A Next-to-Leading-Order Study of Dihadron Production

2001-10-02

arxiv.org/abs/hep-ph/0110036v2

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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