Single spin asymmetries and vector meson production in DIS
  We discuss possible measurements and origins of single spin asymmetries in DIS and of some unusual spin properties of vector mesons produced in lepton- nucleon, photon-nucleon and photon-photon interactions. Such effects have already been observed in other processes. 
Mauro Anselmino (1) and Francesco Murgia (2) ((1) University and INFN,   Torino, Italy, (2) University and INFN, Cagliari, I...