Pion-nucleus interaction can be thought on the basis that pion is a particle that plays role of a mediator in the interaction between a pair of nucleons.This interaction is attractive.It pulls the nucleons together.In this paper,the use of pion nucleus scattering to explore the relative neutron proton distributions in nuclei is studied theoretically.This gives us a complete review of the advances and discusses open questions as well as issues related to current research.The field of research in the area of pion-nucleus interaction has been boosted in recent decades with the rise of meson factories.
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