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Very high rotational frequencies and band termination in 73Br

Plettner, C. ; Schnare, H. ; Schwengner, R. ; Käubler, L. ; Dönau, F. ; Ragnarsson, I. LU ; Afanasjev, A. V. ; Algora, A. ; De Angelis, G. and Gadea, A. , et al. (2000) In Physical Review C - Nuclear Physics 62(1). p.143131-143136
Abstract

Rotational bands in 73Br have been investigated up to spins of I = 65/2 using the EUROBALL III spectrometer. One of the negative-parity bands displays the highest rotational frequency ℏω= 1.85 MeV reported to date in nuclei with A ≥ 25. At high frequencies, the experimental J(2) dynamic moment of inertia for all bands decreases to very low values, J(2) ≤ 10ℏ2 MeV-1. The bands are described in the configuration-dependent cranked Nilsson-Strutinsky model. The calculations indicate that one of the negative-parity bands is observed up to its terminating single-particle state at spin 63/2. This result establishes the first band termination in the A ≈ 70 mass region.

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publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C - Nuclear Physics
volume
62
issue
1
article number
014313
pages
6 pages
publisher
American Physical Society
external identifiers
  • scopus:12944277106
ISSN
0556-2813
language
English
LU publication?
yes
id
8b67c30c-4afd-4411-ba6a-7507b0b26450
date added to LUP
2024-01-31 11:38:16
date last changed
2024-02-26 14:42:55
@article{8b67c30c-4afd-4411-ba6a-7507b0b26450,
  abstract     = {{<p>Rotational bands in <sup>73</sup>Br have been investigated up to spins of I = 65/2 using the EUROBALL III spectrometer. One of the negative-parity bands displays the highest rotational frequency ℏω= 1.85 MeV reported to date in nuclei with A ≥ 25. At high frequencies, the experimental J<sup>(2)</sup> dynamic moment of inertia for all bands decreases to very low values, J<sup>(2)</sup> ≤ 10ℏ<sup>2</sup> MeV<sup>-1</sup>. The bands are described in the configuration-dependent cranked Nilsson-Strutinsky model. The calculations indicate that one of the negative-parity bands is observed up to its terminating single-particle state at spin 63/2. This result establishes the first band termination in the A ≈ 70 mass region.</p>}},
  author       = {{Plettner, C. and Schnare, H. and Schwengner, R. and Käubler, L. and Dönau, F. and Ragnarsson, I. and Afanasjev, A. V. and Algora, A. and De Angelis, G. and Gadea, A. and Napoli, D. R. and Eberth, J. and Steinhardt, T. and Thelen, O. and Hausmann, M. and Müller, A. and Jungclaus, A. and Lieb, K. P. and Jenkins, D. G. and Wadsworth, R. and Wilson, A. N. and Frauendorf, S.}},
  issn         = {{0556-2813}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{143131--143136}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C - Nuclear Physics}},
  title        = {{Very high rotational frequencies and band termination in <sup>73</sup>Br}},
  volume       = {{62}},
  year         = {{2000}},
}