title: Dihadron fragmentation functions for large invariant mass.
abstract: Using perturbative quantum chromodynamics, we compute dihadron fragmentation functions for a large invariant mass of the dihadron pair. The main focus is on the interference fragmentation function H(1)(∢), which plays an important role in spin physics of the nucleon. Our calculation also reveals that H(1)(∢) and the Collins fragmentation function have closely related underlying dynamics. By considering semi-inclusive deep-inelastic scattering, we further show that collinear factorization in terms of dihadron fragmentation functions and collinear factorization in terms of single-hadron fragmentation functions provide the same result in the region of intermediate invariant mass.
authors.affiliation: Department of Physics, Temple University, Philadelphia, Pennsylvania 19122-6082, USA.
authors.forename: J
authors.initials: J
authors.lastname: Zhou
authors.forename: A
authors.initials: A
authors.lastname: Metz