Further evidence of rotational structure in <sup>26</sup>Mg
A Nagel; G D Jones; P R G Lornie; M R Nixon; H C Price; P J Twin; A Nagel; Univ. Liverpool, UK; G D Jones; Univ. Liverpool, UK; P R G Lornie; Univ. Liverpool, UK; M R Nixon; Univ. Liverpool, UK; H C Price; Univ. Liverpool, UK; P J Twin; Univ. Liverpool, UK
Журнал:
Journal of Physics G: Nuclear Physics
Дата:
1975-04-01
Аннотация:
The 4.350 MeV(3<sup>+</sup>) and 5.716 MeV(4<sup>+</sup>) states in <sup>26</sup>Mg have been studied with particle gamma ray angular correlation measurements using the reactions <sup>26</sup>Mg( alpha alpha ' gamma ) <sup>26</sup>Mg with Ge(Li) detectors. Branching ratios and E2/M1 mixing ratios were deduced; in particular a new 815 keV transition (5.716 to 4.901 MeV) has been found. The E2 transition strengths of the cascading gamma rays with 1366 keV (4<sup>+</sup> to 3<sup>+</sup>) and 1412 keV (3<sup>+</sup> to 2<sup>+</sup>) of 3+or-1 and 9<sub>-3</sub><sup>+4</sup> Weisskopf units respectively support the assignment of the 4.350 and 5.716 MeV states to the K<sup>pi </sup>=2<sup>+</sup> rotational band based on the 2.938 MeV (2<sup>+</sup>) states. The results are compared with recent deformed shell model calculations. Nineteen further states between 6 and 9.1 MeV were excited; a decay scheme has been established and several branching ratios are reported. The possible assignment of high spins to some of the higher states is discussed.
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