Is the 7/21-isomer state of S43 spherical?

R. Chevrier, J. M. Daugas, L. Gaudefroy, Y. Ichikawa, H. Ueno, M. Hass, H. Haas, S. Cottenier, N. Aoi, K. Asahi, D. L. Balabanski, N. Fukuda, T. Furukawa, G. Georgiev, H. Hayashi, H. Iijima, N. Inabe, T. Inoue, M. Ishihara, Y. IshiiD. Kameda, T. Kubo, T. Nanao, G. Neyens, T. Ohnishi, M. M. Rajabali, K. Suzuki, H. Takeda, M. Tsuchiya, N. Vermeulen, H. Watanabe, A. Yoshimi

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

We report on the spectroscopic quadrupole moment measurement of the 7/21- isomeric state in S271643 [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, Q s=23(3)efm2, 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 Q s, and show that non-negligible correlations drive the isomeric state away from a purely spherical shape.

Original languageEnglish
Article number162501
JournalPhysical review letters
Volume108
Issue number16
DOIs
Publication statusPublished - 2012 Apr 16

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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