Pion-pion scattering analysis of 205 GeV/c pi- p interactions in the NAL 30-inch hydrogen bubble chamber

A number of experiments at beam momenta below {approx} 25 GeV/c have yielded results on {pi}{sup -}{pi}{sup +} and {pi}{sup -}{pi}{sup -} scattering cross sections, obtained by modified Chew-Low extrapolation techniques applied to the reactions {pi}{sup -}p {yields} {Delta}{sup 0}{pi}{sup +}{sup -}. They have applied these same techniques to a small sample (169 events) of the reaction {pi}{sup -}p {yields} p{pi}{sup +}{pi}{sup -}{pi}{sup -} obtained from a 48,000-photo exposure of the NAL 30-inch hydrogen bubble chamber to a 205 GeV {pi}{sup -} beam. The statistics are insufficient to test the validity of the analysis at these high energies but they find {pi}{sup -}{pi}{sup +} and {pi}{sup -}{pi}{sup -} elastic scattering cross sections in the M{sub {pi}{sup {+-}}{pi}{sup -}} {approx} 3 GeV. Results will be presented of an attempt to obtain inelastic and total {pi}{pi} scattering cross-section estimates under similar assumptions.