Cylindrical spark chamber array used for the measurement of angle, range and polarization in a study of K−-p interactions

A spark-chamber study on K-- interactions with protons at 700 to 1400 Mev/c is described. A Bevatron unseparated negative beam ( pi /sup -/ and K/sup - /) was used. Large solid angle and high angular resolution were obtained by surrounding a liquid Hs/bu 2/ target by a ten-gap cylindrical chamber. Techniques used to measure polarization of reaction products are described along with methods of defining the incident momentum for each event and procedures for establishment of various parameters. (J.R.D.)