| 主頁 > Quenched Spectroscopic Factors for Low-Lying Positive Parity States in 31Mg |
| Published Articles | |
| Title | Quenched Spectroscopic Factors for Low-Lying Positive Parity States in 31Mg |
| Author(s) | Imai, N (KEK, Tsukuba) ; Mukai, M (Tsukuba U.) ; Cederkäll, J (Lund U.) ; Aghai, H (CERN) ; Golubev, P (Lund U.) ; Johansson, H T (Chalmers U. Tech.) ; Kahl, D (Tokyo U., CNS, Saitama) ; Teranishi, T (Kyushu U.) ; Watanabe, Y X (KEK, Tsukuba) |
| Publication | 2015 |
| Number of pages | 6 |
| In: | JPS Conf. Proc. 6 (2015) 020005 |
| In: | 2nd Conference on Advances in Radioactive Isotope Science, Tokyo, Japan, 1 - 6 Jun 2014, pp.020005 |
| DOI | 10.7566/JPSCP.6.020005 |
| Subject category | Nuclear Physics - Experiment |
| Abstract | The excitation function of the proton resonance elastic scattering with a ^30Mg beam of 2.92 MeV/nucleon was measured around 0 degrees in the laboratory frame. Three resonances corresponding to high excited states in ^31Al were successfully observed. They correspond to the isobaric analog resonances of the first three bound states in ^31Mg, which is considered to be located at the border of the island of inversion. An R-matrix analysis on the excitation function revealed that the spectroscopic factors for the first two positive parity resonances were quenched compared to those for other N=19 nuclei, ^35S and ^37Al, clearly indicating that the shell structure changes between ^30Mg and ^31Mg. |