Speaker
Luca Polano
Description
Di-hadron fragmentation functions provide an alternative method for extracting the transversity parton distribution function, complementary to the Collins effect. This method relies on a spin asymmetry in which the denominator involves the unpolarized contribution to di-hadron production. However, measurements of unpolarized inclusive cross sections for charged di-hadron production have only recently become available. In this presentation, I will discuss a new extraction of the unpolarized di-hadron fragmentation functions up to NNLO accuracy, performed in collaboration with Paris-Saclay, and based on both a physics-informed and a neural network parametrization.
Author
Luca Polano
