Shell Model Analysis of the $^{56}$Ni Spectrum in the Full $pf$ Model Space

ORAL

Abstract

We present a full $pf$-shell spectroscopy of the low-lying states of $^{56}$Ni using the GXPF1A interaction.[M. Honma et al., Proceedings of ENAM, 2004] Both, the ground state band and the first deformed band, as well as the transition probabilities compares favorably with the experimental data.[D. Rudolpf et al., Phys. Rev. Lett. {\bf 82}, 5763 (1999)] We analyze the significance of the $np-nh$ contributions to the full model calculations, similar to the analysis done for $^{28}$Si in the $sd$-shell some twenty years ago.[Brown and Wildenthal, Ann. Rev. Nucl. Part. Sci. {\bf 38}, 29 (1988)]

*Support from NSF grant PHY-0244453 is acknowledged.

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Authors

  • Mihai Horoi

    • Department of Physics, Central Michigan University, Mount Pleasant, Michigan 48859

  • B. Alex Brown

    • National Superconducting Cyclotron Laboratory, and Department of Physics and Astronomy, Michigan State University, E. Lansing, MI 48824

  • T. Otsuka

    • Department of Physics and Center for Nuclear Study, University of Tokyo, Hongo, Tokyo 113-0033, Japan

  • M. Honma

    • Center for Mathematical Sciences, University of Aizu, Tsuruga, Ikki-machi, Aizu-Wakamatsu, Fukushima 965-8580, Japan

  • T. Mizusaki

    • Institute of Natural Sciences, Senshu University, Higashimita, Tama, Kawasaki, Kanagawa, 214-8580, Japan