Статья

<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>20</mml:mn><mml:mi> </mml:mi><mml:mi>μ</mml:mi><mml:mi>s</mml:mi></mml:mrow></mml:math>isomeric state in doubly odd<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msubsup><mml:mrow/><mml:mrow><mml:mn>61</mml:mn></mml:mrow><mml:mrow><mml:mn>134</mml:mn></mml:mrow></mml:msubsup><mml:mi mathvariant="normal">Pm</mml:mi></mml:mrow></mml:math>

D. M. CullenSchuster Laboratory, University of Manchester, Manchester M13 9PL, United KingdomPaolo MasonSchuster Laboratory, University of Manchester, Manchester M13 9PL, United KingdomS. V. RigbySchuster Laboratory, University of Manchester, Manchester M13 9PL, United KingdomC. ScholeyDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandS. EeckhaudtDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandT. GrahnDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandP. T. GreenleesDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandU. JakobssonDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandPeter G. JonesDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandR. JulinDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandS. JuutinenDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandS. KetelhutDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandA. KishadaSchuster Laboratory, University of Manchester, Manchester M13 9PL, United KingdomM. LeinoDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandA.-P. LeppänenDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandK. MäntyniemiDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandP. NieminenDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandMay NymanDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandJ. PakarinenDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandP. PeuraDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandP. RahkilaDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandJ. SarénDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandJ. SorriDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandJ. UusitaloDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, FinlandB. J. VarleySchuster Laboratory, University of Manchester, Manchester M13 9PL, United KingdomM. VenhartDepartment of Physics, University of Jyväskylä, Jyväskylä FIN-40014, Finland

2009lv

ABI

Аннотация

Recoil-isomer tagging at the Accelerator Laboratory of the University of Jyv\"askyl\"a has been used to establish the isomeric nature of a known (${7}^{\ensuremath{-}}$) excited state in the doubly odd nucleus $^{134}\mathrm{Pm}$. The isomeric state was determined to have a half-life of 20(1) $\ensuremath{\mu}s$ and was populated from the decay of a $\ensuremath{\pi}{h}_{11/2}\ensuremath{\bigotimes}\ensuremath{\nu}{h}_{11/2}$ band using the $^{92}\mathrm{Mo}(^{54}\mathrm{Fe},2\ensuremath{\alpha}3\mathit{pn})$ reaction at 305 and 315 MeV. The isomer decays by a 71-keV transition that provides an intermediate step in linking the established $^{134}\mathrm{Pm}$ high-spin level scheme to the lower-spin states observed from the $\ensuremath{\beta}$ decay of $^{134}\mathrm{Sm}$. Electron-conversion analysis for the 71-keV $\ensuremath{\gamma}$-ray transition reveals that it is of $E1$ character and its small reduced-transition probability suggests that $^{134}\mathrm{Pm}$ may have a nuclear shape more rigid than that of the neighboring nuclei.

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Идентификаторы

DOI: 10.1103/physrevc.80.024303

Цитирования и источники

Цитирований: 2Использованных источников: 0

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