Phys. Rev. C 61, 064314 (2000) [7 pages]

Nonyrast high-spin states in N=Z ⁴⁴Ti

Abstract

References

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C. D. O’Leary^1,2, M. A. Bentley², B. A. Brown³, D. E. Appelbe^1,*, R. A. Bark^4,†, D. M. Cullen¹, S. Ertürk^1,‡, A. Maj^4,5, and A. C. Merchant⁶
¹Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
²School of Sciences, Staffordshire University, College Road, Stoke-on-Trent ST4 2DE, United Kingdom
³Department of Physics and Astronomy and the National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
⁴Tandem Accelerator Laboratory, Niels Bohr Institute, Risø, DK-4000 Roskilde, Denmark
⁵Niewodniczanski Institute of Nuclear Physics, 31–342 Krakow, ul. Radzikowskiego 152, Poland
⁶Theoretical Physics, 1 Keble Road, Oxford OX1 3NP, United Kingdom

Received 24 January 2000; published 18 May 2000

High-spin states have been investigated in the N=Z=22 nucleus ⁴⁴Ti. A newly observed set of states with J^π=6⁺, 8⁺, 10⁺, and 12⁺ are assigned to be members of a band built upon an excited 0⁺ state. This band displays rotational-like level spacings, with a near-linear J(J+1) dependence. A third set of J^π=8⁺, 10⁺, and 12⁺ states have also been tentatively assigned and a negative-parity intruder band has been extended to J^π=13^-. Comparisons with df-shell model calculations show a good agreement for both energy levels and branching ratios. These calculations indicate that the excited 0⁺ band is dominated by a mixture of 8p–4h and 6p–2h configurations relative to ⁴⁰Ca.

URL:

http://link.aps.org/doi/10.1103/PhysRevC.61.064314

DOI:

10.1103/PhysRevC.61.064314

PACS:

23.20.Lv, 27.40.+z, 21.60.Cs, 21.60.Gx, 23.20.Lv, 27.40.+z, 21.60.Cs, 21.60.Gx

^*Present address: Department of Physics and Astronomy, McMaster University, Hamilton, Canada L8S 4M1.

^†Present address: Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia.

^‡Present address: Nigde Universitesi, Fen-Edebiyat Fakültesi, Fizik Bölümü, Nigde, Turkey.

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Phys. Rev. C 61, 064314 (2000) [7 pages]

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Nonyrast high-spin states in N=Z ⁴⁴Ti