Identification of mixed-symmetry states in an odd-mass nearly spherical nucleus |
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Authors: | Orce J N Holt J D Linnemann A McKay C J Lesher S R Fransen C Holt J W Kumar A Warr N Werner V Jolie J Kuo T T S McEllistrem M T Pietralla N Yates S W |
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Institution: | Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055, USA. jnorce@pa.uky.edu |
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Abstract: | The low-spin structure of 93Nb has been studied using the (n,n'gamma) reaction at neutron energies ranging from 1.5 to 3 MeV and the 94Zr(p,2ngamma)93Nb reaction at bombarding energies from 11.5 to 19 MeV. States at 1779.7 and 1840.6 keV, respectively, are proposed as mixed-symmetry states associated with the pi2p(1/2)-1x(2(1),MS+,94Mo) coupling. These assignments are derived from the observed M1 and E2 transition strengths to the 2p(1/2)-1x(2(1)+,94Mo) symmetric one-phonon states, energy systematics, spins and parities, and comparison with shell model calculations. |
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