Models for transverse-momentum distributions and transversity
  I present a short review of models for transverse-momentum distributions and transversity, with a particular attention on general features common to many models. I compare some model results with experimental extractions. I discuss the existence of relations between different functions, their limits of validity, their possible use. 
Alessandro Bacchetta (Pavia U. and INFN)
hep-ph hep-ex