Transversity distribution function in hard scattering of polarized   protons and antiprotons in the PAX experiment
  Estimates are given for the double spin asymmetry in lepton pair production from collisions of transversely polarized protons and antiprotons for the kinematics of the recently proposed PAX experiment at GSI on the basis of predictions for the transversity distribution from the chiral quark soliton model. 
A.V. Efremov (Dubna, JINR), K. Goeke, P. Schweitzer (Ruhr U., Bochum)