Fragmentation production of heavy quark states

Abstract

It has recently been noticed that heavy quark ($Q$) and gluon ($g$) fragmentation to heavy quarkonium states ($Q\bar{Q}$) can be calculated in perturbative QCD. This technique allows for the inclusion of a subset of higher order corrections to quarkonium production which dominates at large transverse momentum. A comparison will be presented between the new calculation of quarkonium production to the existing data from the Tevatron. In addition some new results on predictions for double heavy quark baryons at various colliders will be presented.