Abstract.
High-spin states from the three-quasiparticle (3qp) configuration \(\pi\)g\(_{9/2}\nu\)h11/2 2 in the neutron-rich 49In isotopes have been studied in the framework of shell model calculation. The two-body residual interactions needed for such calculations have been extracted from the level schemes of neighbouring nuclei. In particular, the evolution of the proton-neutron \(\pi g_{9/2}\nu h_{11/2}\) interaction has been analyzed as a function of the neutron number. When the gradual filling of the \(\nu h_{11/2}\) sub-shell is taken into account, the results of the 3qp configuration calculations are found to be very close to the experimental positive-parity yrast states located above 2 MeV excitation energy in \(^{113\mbox{--}121}\)In. Moreover, several long-lived isomeric states with positive parity are predicted in 123,125,127In.
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References
M. Moinester, J.P. Schiffer, W.P. Alford, Phys. Rev. 179, 984 (1969).
J.P. Schiffer, Ann. Phys. (N.Y.) 66, 798 (1971).
A. Molinari, M.B. Johnson, H.A. Bethe, W.M. Alberico, Nucl. Phys. A 239, 45 (1975).
A. de Shalit, I. Talmi, Nuclear Shell Theory (Academic Press, 1963).
J. Van Maldeghem, K. Heyde, J. Sau, Phys. Rev. C 32, 1067 (1985).
R. Lucas et al. , Eur. Phys. J. A 15, 315 (2002).
I. Talmi, Simple Models of Complex Nuclei (Harwood Academic Publishers, 1993) Chapt. 31.
R.B. Firestone, Table of Isotopes, 8th edition (Wiley, New York, 1996).
S.P. Pandya, Phys. Rev. 103, 956 (1956).
V. Paar, Nucl. Phys. A 331, 16 (1979).
B. Fogelberg et al. , Proceedings of the 2nd International Workshop on Nuclear Fission and Fission Product Spectroscopy, Seyssins, France (April 1998), AIP Conf. Proc. 447, 191 (1998).
J. Genevey et al. , Phys. Rev. C 67, 054312 (2003).
R.H. Mayer et al. , Phys. Lett. B 336, 308 (1994).
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Communicated by D. Schwalm
Received: 8 October 2003, Published online: 6 April 2004
PACS:
21.60.Cs Shell model - 27.60. + j \(90 \leq A \leq 149\)
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Porquet, MG., Astier, A., Deloncle, I. et al. Evolution of the \(\pi g_{9/2} \nu h_{11/2}^{2}\) multiplet in the neutron-rich 49 In isotopes: Evidence for the gradual filling of the neutron sub-shell. Eur. Phys. J. A 20, 245–250 (2004). https://doi.org/10.1140/epja/i2003-10161-8
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DOI: https://doi.org/10.1140/epja/i2003-10161-8