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Report No.
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Effect of two-particle two-hole excitations in target nuclei on inelastic differential cross sections

Minato, Futoshi; Fukui, Tokuro*

A picture of nuclear excited states can be discribed by 1p1h excitation. Experimental data of inelastic scatterings are reasonably reproduced theoretically in this picture. However, it is known that higher-order configurations are important for a better insight of the excited states. This may apply to the inelastic scattering. However, the relation between higher-order configuration and inelastic scattering is not clear. To clarify the relation, we consider 2p2h excitation of target nuclei and focus on the differential cross sections. The 2p2h states of target nuclei are calculated by SRPA. The reaction process is calculated by DWBA. As a reaction channel, inelastic scattering and (p,n) reaction are chosen. It turned out that the diffraction patterns of the differential cross section considering 2p2h were not significantly different from those considering 1p1h although the absolute values were smaller than 1p1h calculation. We discuss it from the nuclear structural point of view.

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