Production of the 2π+π- system on light nuclei by 4-GeV/c mesons
Vasil'kova A.D. , Gornov M.G., Matalygina Zh.I., Levina V.I., Protasov V.P., Sergeev P.M.
It is shown that no process with participation of the virtual isobar Δ~(1238) exists. The mechanism of the reaction is determined in the main by the production of a virtual ir" meson which is subsequently absorbed in the nucleus.