Neutron-dominant quadrupole collective motion in C16

H. J. Ong, N. Imai, N. Aoi, H. Sakurai, Zs Dombrádi, A. Saito, Z. Elekes, H. Baba, K. Demichi, Z. S. Fülöp, J. Gibelin, T. Gomi, H. Hasegawa, M. Ishihara, H. Iwasaki, S. Kanno, S. Kawai, T. Kubo, K. Kurita, Y. U. MatsuyamaS. Michimasa, T. Minemura, T. Motobayashi, M. Notani, S. Ota, H. K. Sakai, S. Shimoura, E. Takeshita, S. Takeuchi, M. Tamaki, Y. Togano, K. Yamada, Y. Yanagisawa, K. Yoneda

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Abstract

Inelastic proton scattering to the 21+ state of neutron-rich C16 is studied in inverse kinematics using a 33-MeV/nucleon beam. The deformation parameter βpp'=0.47(5) obtained is consistent with the global systematics of even-even nuclei, based on the homogeneous quantum liquid-drop model. This result contrasts that of a recent lifetime measurement for the 21+ state in C16, where an anomalously reduced E2 transition strength is observed. A combination of these two results yields a large Mn/Mp ratio of about 7, indicating a dominant neutron contribution to the quadrupole collectivity.

Original languageEnglish
Article number024610
JournalPhysical Review C - Nuclear Physics
Volume73
Issue number2
DOIs
Publication statusPublished - Mar 9 2006

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Ong, H. J., Imai, N., Aoi, N., Sakurai, H., Dombrádi, Z., Saito, A., Elekes, Z., Baba, H., Demichi, K., Fülöp, Z. S., Gibelin, J., Gomi, T., Hasegawa, H., Ishihara, M., Iwasaki, H., Kanno, S., Kawai, S., Kubo, T., Kurita, K., ... Yoneda, K. (2006). Neutron-dominant quadrupole collective motion in C16. Physical Review C - Nuclear Physics, 73(2), [024610]. https://doi.org/10.1103/PhysRevC.73.024610