Speaker
KAZUKI MAKINO
Description
Dihadron fragmentation functions describes the probability of observing a pair of hadrons fragmenting from a quark. It involves an invariant scale associated to the relative internal motion of the dihadron system $M_h^2$ in addition to the overall hard scale $Q^2$. Evolution in $M_h^2$ varies continuously from nonperturbative to perturbative region. We demonstrate how to evolve Dihadron fragmentation functions in the presence of these two scales. In particular, our objective is to characterize the DIGLAP evolution of non-perturbative input distribution while simultaneously accounting for perturbative resummation in large $M_h^2$.