Quark and gluon fragmentation into two mesons from jet calculus

The authors present their calculations of fragmentation functions for quark and gluon breakup into two mesons within the jet calculus framework. The momentum fraction and Q/sup 2/ dependence of such two particle functions are presented and studied. The dependence on these variables is compared with the calculation by Willen who appends phenomenological fragmentation functions to the two parton jet calculus diagrams. Their approach requires all four parton diagrams. The Q/sup 2/ dependence of meson-meson correlations found by Willen are quite different from that in our approach and the two should be experimentally differentiated