The Effect of Vector Meson Decays on Dihadron Fragmentation Functions

Understand

Dihadron Fragmentation Functions (DFF) provide a vast amount of information on the intricate details of the parton hadronization process.

• Moreover, they provide a unique access to the "clean" extraction of nucleon transversity parton distribution functions in semi inclusive deep inelastic two hadron production process with a transversely polarised target.
• On the example of the u \to \pi^+ \pi^-, we analyse the properties of unpolarised DFFs using their probabilistic interpretation.
• We use both the NJL-jet hadronization model and PYTHIA 8.1 event generator to explore the effect of the strong decays of the vector mesons produced in the quark hadronization process on the pseudoscalar DFFs.