Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2008-05-19
J. Korean Phys. Soc. 54 (2009) 792
Physics
Nuclear Physics
Nuclear Theory
10 pages, 6 figures
Scientific paper
We examine the common belief that the $N_pN_n$ scheme is manifested as a direct consequence of the valence proton-neutron interaction which has proven to be a dominant factor in developing collectivity in nuclei. We show that the simplification of the $N_pN_n$-plot of the lowest $2^+$ excitation energy is introduced merely because the excitation energy always decreases when the valence nucleon number becomes larger.
Byun Youngshin
Cha Dongwoo
Jin Guanghao
Yoon Jin-Hee
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