Search for theta+(1540) in the Reaction K+ p -> K+ n pi+ at 11 GeV/c
  We have studied the reaction K+ p -> K+ n pi+ using an 11 GeV/c K+ beam and the Large Acceptance Superconducting Solenoid (LASS) multiparticle spectrometer facility at SLAC. We put limits on the production of narrow theta+ baryons in this reaction. 
J. Napolitano, J. Cummings, and M. Witkowski