Speaker
Samuel F. Romera
(University of the Basque Country)
Description
Quarkonia are perfect laboratories to study the interplay between perturbative and nonperturbative QCD, due to the different momentum scales it provides. I am going to focus on the production of quarkonia through the fragmentation of a gluon, one of the possible mechanisms to quarkonia production. I am going to talk about the factorization of the TMD in terms of the short-distance coefficients and long-distance matrix elements in the framework of NRQCD, the theshold expansion in order to describe the heavy quarkonium states and I am going to show our recent result of the gluon TMD fragmentation function into heavy-quarkonium in the color-octet channel.
Primary authors
Samuel F. Romera
(University of the Basque Country)
Miguel Echevarria
(University of Alcala)
Ignazio Scimemi
(Universidad Complutense Madrid)
