Quasi-band structure in <sup>64</sup>Zn
D N Simister; G D Jones; F Kearns; A Kogan; P R G Lornie; T P Morrison; O M Mustaffa; H G Price; P J Twin; R Wadsworth; D N Simister; Oliver Lodge Lab., Univ. of Liverpool, Liverpool, UK; G D Jones; Oliver Lodge Lab., Univ. of Liverpool, Liverpool, UK; F Kearns; Oliver Lodge Lab., Univ. of Liverpool, Liverpool, UK; A Kogan; Oliver Lodge Lab., Univ. of Liverpool, Liverpool, UK; P R G Lornie; Oliver Lodge Lab., Univ. of Liverpool, Liverpool, UK; T P Morrison; Oliver Lodge Lab., Univ. of Liverpool, Liverpool, UK; O M Mustaffa; Oliver Lodge Lab., Univ. of Liverpool, Liverpool, UK; H G Price; Oliver Lodge Lab., Univ. of Liverpool, Liverpool, UK; P J Twin; Oliver Lodge Lab., Univ. of Liverpool, Liverpool, UK; R Wadsworth; Oliver Lodge Lab., Univ. of Liverpool, Liverpool, UK
Журнал:
Journal of Physics G: Nuclear Physics
Дата:
1978-07-01
Аннотация:
The reactions <sup>61</sup>Ni( alpha ,n gamma )<sup>64</sup>Zn and <sup>56</sup>Fe(<sup>11</sup>B,2pn gamma )<sup>64</sup>Zn have been used to make spin assignments of J<sup>pi </sup>=6<sup>+</sup>,6<sup>+</sup> and 7<sup>-</sup> to the levels in <sup>64</sup>Zn at 3994, 4237 and 4636 keV respectively. Lifetime measurements of 175+or-50 fs and 190+or-60 fs for the two J<sup>pi </sup>=6<sup>+</sup> levels yield E2 transition strengths of 23+or-5 Wu for the 6<sub>1</sub><sup>+</sup> to 4<sub>1</sub><sup>+</sup> transition and 37<sub>-9</sub><sup>+17</sup> Wu for the 6<sub>2</sub><sup>+</sup> to 4<sub>2</sub><sup>+</sup> transition. These results indicate the presence of two quasi-bands in <sup>64</sup>Zn.
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