Triaxiality in $^{105}$ Mo and $^{107}$Mo from the low to intermediate spin region

Autor: Pinston, J.A., Urban, W., Droste, Ch., Genevey, J., Rzaca-Urban, T., Simpson, G.S., Durell, J.L., Smith, A.G., Varley, B.J., Ahmad, I.
Přispěvatelé: Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2006
Předmět:
Zdroj: Physical Review C
Physical Review C, American Physical Society, 2006, 74, pp.064304. ⟨10.1103/PhysRevC.74.064304⟩
ISSN: 2469-9985
2469-9993
Popis: The nuclear structure of the odd $^{105}$ Mo and $^{107}$Mo isotopes was reinvestigated in the present work. The excited levels of $^{105}$ Mo were studied by observing prompt $\gamma$ rays emitted after the spontaneous fission of $^{248}$Cm with the EUROGAM2 multidetector array. The already well studied level structure of $^{107}$Mo was also completed by a search for microsecond isomers. For this purpose, this nucleus was produced by the thermal-neutron induced fission reaction at the ILL reactor, in Grenoble. We have shown that the experimental level energies and the $\gamma$-decay patterns are well reproduced by simple particle-rotor calculations, assuming that these nuclei have an asymmetric shape. The shapes of the odd and even Mo are compared in the neutron range N=62-66.
Databáze: OpenAIRE