(Cross sections for lepton pair production and for capture of the pair-produced electrons to bound states of the fully-stripped projectiles)

The travelers spent approximately one month setting up, performing measurements, and then tearing down an experimental apparatus used to study various aspects of lepton pair production in collisions of 200-GeV/u sulfur ions with various targets. Results of the approximately ten days of beam-on-target measurement time are currently being evaluated. One traveler (HFK) learned about new theoretical investigations involving ion channeling in very thin crystals and its connections to catastrophe theory. The traveler discussed and began an investigation of a possible connection between the channeling rainbow and the channeling halo for very thin crystals.