Department of Physics, University of California, Los Angeles, California90024, USA;Lawrence Berkeley Laboratory, Berkeley, California 94720, USA
Abstract:
The p-4He elastic differential cross section has been measured at a kinetic energy of 2.68 GeV. The momentum transfer region studied is t = 0.15–0.66 (GeV/c)2. The cross section displays a shallow first minimum and shape very similar to recent data at 1 GeV.