Ab. Kaidalov et Ap. Krutenkova, PION DOUBLE-CHARGE-EXCHANGE ON NUCLEI AND INELASTIC RESCATTERINGS, Physics of atomic nuclei, 60(7), 1997, pp. 1206-1211
The inclusive pion double charge exchange on nuclei is considered with
in the Gribov-Glauber approach. It is shown that inelastic rescatterin
gs associated with the production of two (and more) pions in the inter
mediate state make an important contribution to double charge exchange
at kinetic energies above some 0.5 GeV. This mechanism dominates at e
nergies higher than 1 GeV and makes it possible to explain the weak en
ergy dependence of the double-charge-exchange cross section observed e
xperimentally.