Evolution equations for extended dihadron fragmentation functions

Details Evolution equations for extended dihadron fragmentation functions Evolution equations for extended dihadron fragmentation functions

2007-03-24

arxiv.org/abs/hep-ph/0703265v1

Phys.Lett.B650:81-89,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 1 figure in eps format; RevTeX4 style

Scientific paper

10.1016/j.physletb.2007.04.065

We consider dihadron fragmentation functions, describing the fragmentation of a parton in two unpolarized hadrons, and in particular extended dihadron fragmentation functions, explicitly dependent on the invariant mass, $M_h$, of the hadron pair. We first rederive the known results on $M_h$-integrated functions using Jet Calculus techniques, and then we present the evolution equations for extended dihadron fragmentation functions. Our results are relevant for the analysis of experimental measurements of two-particle-inclusive processes at different energies.

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