Journal article
Pion absorption in [Formula Presented]
R Tacik, F Farzanpay, EL Mathie, P Amaudruz, JT Brack, L Felawka, R Meier, D Ottewell, GR Smith, G Hofman, M Kermani, S McFarland, K Raywood, M Sevior, F Bonutti, P Camerini, N Grion, R Rui, EF Gibson
Physical Review C Nuclear Physics | AMER PHYSICAL SOC | Published : 1998
Abstract
We have studied the two reactions [Formula Presented] and [Formula Presented] in one experiment, using the CHAOS spectrometer at TRIUMF, at incident pion energies of 200, 240, and 280 MeV. In both cases, we are able to distinguish between reaction mechanisms involving only the detected protons, and those in which additional nucleons must have participated, on the basis of missing momentum. In the case of [Formula Presented], we identify events due to the two step process of [Formula Presented] quasielastic scattering followed by two-nucleon absorption. Estimates are made for the total cross sections for the various absorption mechanisms. © 1998 The American Physical Society.