TY - JOUR
T1 - Large deformation of the very neutron-rich nucleus 32Mg from intermediate-energy Coulomb excitation
AU - Motobayashi, T.
AU - Ikeda, Y.
AU - Ieki, K.
AU - Inoue, M.
AU - Iwasa, N.
AU - Kikuchi, T.
AU - Kurokawa, M.
AU - Moriya, S.
AU - Ogawa, S.
AU - Murakami, H.
AU - Shimoura, S.
AU - Yanagisawa, Y.
AU - Nakamura, T.
AU - Watanabe, Y.
AU - Ishihara, M.
AU - Teranishi, T.
AU - Okuno, H.
AU - Casten, R. F.
N1 - Funding Information:
We would like to thank the RIKEN Ring Cyclotron staffs for their help during the experiment. We acknowledge discussions with N. Fukunishi and T. Ot-suka. We are also grateful to J. Kiener for valuable suggestionsf or theoreticala nalysis. The presentw ork is supportedb y the Grant-In-Aid for Scientific Research of the Japan Ministry of Education, Science and Culture undert hep rogramn umbers0 4452029a nd 04740141,a nd by the U.S. Dept. of Energy under contract number DE-AC02-76CH00016.
PY - 1995/3/2
Y1 - 1995/3/2
N2 - The Coulomb excitation of a very neutron-rich nucleus 32Mg to its 2+ state was studied using an unstable nuclear beam of 32Mg at 49.2 MeV/u with a 208Pb target. The B(E2) value of 454±78 e2fm4 was extracted by a coupled channel analysis. The value is in good agreement with recent predictions. It confirms a large deformation for 32Mg suggested by the low excitation energy of the 2+ state, and points to the vanishing of the N = 20 shell gap.
AB - The Coulomb excitation of a very neutron-rich nucleus 32Mg to its 2+ state was studied using an unstable nuclear beam of 32Mg at 49.2 MeV/u with a 208Pb target. The B(E2) value of 454±78 e2fm4 was extracted by a coupled channel analysis. The value is in good agreement with recent predictions. It confirms a large deformation for 32Mg suggested by the low excitation energy of the 2+ state, and points to the vanishing of the N = 20 shell gap.
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U2 - 10.1016/0370-2693(95)00012-A
DO - 10.1016/0370-2693(95)00012-A
M3 - Article
AN - SCOPUS:0001932285
SN - 0370-2693
VL - 346
SP - 9
EP - 14
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-2
ER -