1‐GeV Protons Probe Motion of Nucleons in Nuclear Matter

The exceptional stability and high energy of the Cosmotron beam and recent improvements in wire spark‐chamber techniques have been used to probe the distribution of matter in light nuclei. In a race to beat the final shutdown of the Cosmotron an 11‐man team (Harry Palevsky, Joseph Friedes, Richard Sutter and Gerald Bennett of Brookhaven, George J. Igo of Los Alamos, Dwayne Simpson and Gerald Phillips of Rice University, Daniel Corley and Nathan S. Wall of the University of Maryland, Robert Stearns of Vassar College and Bernard Gottschalk of Northeastern University) used 1‐GeV protons to probe the nucleus in much the same way as x rays probe condensed matter. Their first results were reported in Phys. Rev. Letters 18, 1200 and 19, 387.