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Three Nucleon Force in �?±- 4He Elastic Scattering at Medium Energy

Hassan MA, Awd-Allah HEA 

In the framework of optical limit approximation with inclusion of the threenucleon force effect we obtained a reasonable agreement with the experimental data of α^-4He elastic scattering differential cross section at the momenta 4.32 GeV/c, 5.07 GeV/c and 7 GeV/c. We show that the three-nucleon force effect cannot be neglected in nucleus-nucleus scattering.