Diproton correlation in a proton-rich Borromean nucleus 17Ne
| Autor: | Oishi, T., Hagino, K., Sagawa, H. |
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| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Phys.Rev.C82:024315,2010; Erratum-ibid.C82:069901,2010 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevC.82.024315 |
| Popis: | We carry out three-body-model calculations for a proton-rich Borromean nucleus $^{17}$Ne by assuming a $^{15}$O + $p$ + $p$ structure. To this end, we use a density-dependent contact interaction between the valence protons, explicitly treating also the Coulomb interaction. We find that the two-particle density distribution for $^{17}$Ne is similar to that for $^{16}$C, which has two valence neutrons outside the $N$ = 8 core. That is, the two protons take a spatially compact configuration, while the Coulomb repulsion plays a minor role. This indicates that there is a strong diproton correlation in the ground state of the $^{17}$Ne nucleus. We also show that the Coulomb interaction reduces the expectation value of the proton-proton interaction by about 14\%. Comment: 6 pages, 4 figures |
| Databáze: | arXiv |
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