Journal article
ππ pairs in nuclei and the σ meson
F Bonutti, P Camerini, E Fragiacomo, N Grion, R Rui, JT Brack, L Felawka, EF Gibson, G Hofman, M Kermani, EL Mathie, S McFarland, R Meier, K Raywood, D Ottewell, ME Sevior, GR Smith, R Tacik
Physical Review C - Nuclear Physics | AMER PHYSICAL SOC | Published : 1999
Abstract
In-medium pion-pion correlations were studied via their effect on experimental observables measured for the [Formula Presented] reaction in nuclei [Formula Presented], and [Formula Presented] and in deuterium, from which it is inferred the observables for the nucleon [Formula Presented] n and [Formula Presented]. The measurements were performed at TRIUMF using a positive-pion flux with a bombarding energy of 283 MeV. The [Formula Presented] invariant mass distributions [Formula Presented] were measured from the [Formula Presented] threshold up to the kinematic maximum, and total cross sections [Formula Presented] deduced. The [Formula Presented] medium modifications were investigated by form..
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