Abstract
Experimental lifetimes and branching ratiosB(M1)/B(E2) are used to determine reduced M1-transition probabilities between collective-band levels withδI=1 in102, 104, 106Ag and in the odd-odd isotopes of La, Pr, Pm and Tl. The extractedB(M1) values are compared with calculations in the framework of the quasiclassical approximation and the model “axial rotor+two quasiparticles“. The reduced M1-transition probabilities along with the magnetic moments were found to depend on the mutual orientation of the angular momenta of the unpaired nucleons in the odd-odd nuclei.
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The authors would like to thank the staffs of Cyclotron Laboratory of P.T.I. in St. Petersburg and the Nuclear Moments Laboratory of I.N.R. in Kiev for assistance in the experiments. One of us (A.I.L.) wishes to thank the Sektion Physik of the Ludwig Maximilians Universität München for its hospitality and financial support.
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Levon, A.I., de Boer, J., Pasternak, A.A. et al. M1-transitions and the mutual orientation of the unpaired nucleons in odd-odd nuclei. Z. Physik A - Hadrons and Nuclei 343, 131–138 (1992). https://doi.org/10.1007/BF01291817
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DOI: https://doi.org/10.1007/BF01291817