  We consider $W^{\pm}$ gauge bosons production in connection with recent
results from BNL-RHIC and FNAL-Tevatron and interesting predictions from the
statistical parton distributions. They concern relevant aspects of the
structure of the nucleon sea and the high-$x$ region of the valence quark
distributions. We also give predictions in view of future proton-neutron
collisions experiments at BNL-RHIC.
