WHAT CAN WE LEARN FROM A(π+,η)B CHARGE EXCHANGE REACTION?

Within DWIA formalism, we calculate the η production cross sections from nuclear target by charge exchange reaction A(π+,η)B . For ₁₃C target the cross sections at forward angles are of the order of 10 ηb/sr at T_π =660MeV, which can be measured experimentally. The high momentum component of the wave function of single particle bound state is essential for describing this reaction.