1. Is the 7/2(1)(-) Isomer State of S-43 Spherical?
- Author
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Chevrier, Rémy, Daugas, J.M., Gaudefroy, L., Ichikawa, Y., Ueno, H., Hass, M., Haas, H., Cottenier, S., Aoi, N., Asahi, K., Balabanski, D.L., Fukuda, N., Furukawa, T., Georgiev, G., Hayashi, H., Iijima, H., Inabe, N., Inoue, T., Hishihara, M., Ishii, Y., Kameda, D., Kubo, T., Nanao, T., Neyens, G., Ohnishi, T., Rajabali, M.M., Suzuki, K., Takeda, H., Tsuchiya, M., Vermeulen, N., Watanabe, H., Yoshimi, A., DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CSNSM SNO, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
NEUTRON-RICH NUCLEI ,N=28 SHELL CLOSURE ,ISLAND ,STABILITY ,BORDER ,quadrupole-moment ,n=28 shell closure ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,43S isomer ,QUADRUPOLE-MOMENT ,pyrite ,FE-57 ,neutron-rich nuclei ,fragmentation ,INVERSION ,FRAGMENTATION ,fe-57 ,PYRITE - Abstract
We report on the spectroscopic quadrupole moment measurement of the 7/2(1)(-) isomeric state in S-43(16)27 [E* = 320.5(5) keV, T-1/2 = 415(3) ns], using the time dependent perturbed angular distribution technique at the RIKEN RIBF facility. Our value, vertical bar Q(s) vertical bar = 23(3) efm(2), is larger than that expected for a single-particle state. Shell model calculations using the modern SDPF-U interaction for this mass region reproduce remarkably well the measured vertical bar Q(s) vertical bar, and show that non-negligible correlations drive the isomeric state away from a purely spherical shape. ispartof: Physical Review Letters vol:108 issue:16 ispartof: location:United States status: published
- Published
- 2012
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