Direct and multiple excitations in 96Zr from inelastic-scattering experiments

D. Hofer, M. Bisenberger, R. Hertenberger, H. Kader, H. J. Maier, E. Müller-Zanotti, P. Schiemenz, G. Graw, P. Maier-Komor, G. Molnár, W. Unkelbach, J. Hebenstreit, H. Ohm, D. Paul, P. von Rossen, M. Fujiwara

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Abstract

The excitation of doubly closed subshell 96Zr is studied in polarized d, d') as well as in unpolarized (p, p') and (d, d') reaction experiments at bombarding energies near 20 and 60 MeV. All excited states known from previous γ-spectroscopic studies have been resolved up to 4.1 MeV excitation energy. The data confirm that the low-lying spectrum is dominated by two-quasiparticle excitations, with the excitation strength being concentrated on the lowest states for each spin. The high collectivity of the 3-1 state is most remarkable and in line with recent level-lifetime results. The excitation energies and extracted isoscalar strengths compare well with QRPA results. Coupled- channel calculations, used to distinguish between one-step (two-quasiparticle) and two-step (four- quasiparticle) excitations, give only partial evidence concerning the existence of two-phonon octupole and quadrupole-octupole vibrational states.

Original languageEnglish
Pages (from-to)173-209
Number of pages37
JournalNuclear Physics A
Volume551
Issue number2
DOIs
Publication statusPublished - Jan 11 1993

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inelastic scattering
excitation
vibrational states
energy
quadrupoles
life (durability)

Keywords

  • Nuclear reactions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Hofer, D., Bisenberger, M., Hertenberger, R., Kader, H., Maier, H. J., Müller-Zanotti, E., ... Fujiwara, M. (1993). Direct and multiple excitations in 96Zr from inelastic-scattering experiments. Nuclear Physics A, 551(2), 173-209. https://doi.org/10.1016/0375-9474(93)90478-G

Direct and multiple excitations in 96Zr from inelastic-scattering experiments. / Hofer, D.; Bisenberger, M.; Hertenberger, R.; Kader, H.; Maier, H. J.; Müller-Zanotti, E.; Schiemenz, P.; Graw, G.; Maier-Komor, P.; Molnár, G.; Unkelbach, W.; Hebenstreit, J.; Ohm, H.; Paul, D.; von Rossen, P.; Fujiwara, M.

In: Nuclear Physics A, Vol. 551, No. 2, 11.01.1993, p. 173-209.

Research output: Contribution to journalArticle

Hofer, D, Bisenberger, M, Hertenberger, R, Kader, H, Maier, HJ, Müller-Zanotti, E, Schiemenz, P, Graw, G, Maier-Komor, P, Molnár, G, Unkelbach, W, Hebenstreit, J, Ohm, H, Paul, D, von Rossen, P & Fujiwara, M 1993, 'Direct and multiple excitations in 96Zr from inelastic-scattering experiments', Nuclear Physics A, vol. 551, no. 2, pp. 173-209. https://doi.org/10.1016/0375-9474(93)90478-G
Hofer D, Bisenberger M, Hertenberger R, Kader H, Maier HJ, Müller-Zanotti E et al. Direct and multiple excitations in 96Zr from inelastic-scattering experiments. Nuclear Physics A. 1993 Jan 11;551(2):173-209. https://doi.org/10.1016/0375-9474(93)90478-G
Hofer, D. ; Bisenberger, M. ; Hertenberger, R. ; Kader, H. ; Maier, H. J. ; Müller-Zanotti, E. ; Schiemenz, P. ; Graw, G. ; Maier-Komor, P. ; Molnár, G. ; Unkelbach, W. ; Hebenstreit, J. ; Ohm, H. ; Paul, D. ; von Rossen, P. ; Fujiwara, M. / Direct and multiple excitations in 96Zr from inelastic-scattering experiments. In: Nuclear Physics A. 1993 ; Vol. 551, No. 2. pp. 173-209.
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AU - Unkelbach, W.

AU - Hebenstreit, J.

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