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arXiv · 1007.2865

Fermionic-bosonic couplings in a weakly-deformed odd-mass nucleus, $^{93}_{41}$Nb

J. N. Orce·J. D. Holt·A. Linnemann·C. J. McKay·C. Fransen·J. Jolie·T. T. S. Kuo·S. R. Lesher·M. T. McEllistrem·N. Pietralla·V. Werner·S. W. Yates
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Abstract

A comprehensive decay scheme of $^{93}$Nb below 2 MeV has been constructed from information obtained with the $^{93}$Nb(n,n$^\prime$$\gamma$) and $^{94}$Zr(p,2n$\gamma$$\gamma$)$^{93}$Nb reactions. Branching ratios, lifetimes, transition multipolarities and spin assignments have been determined. From $M1$ and $E2$ strengths, fermionic-bosonic excitations of isoscalar and isovector character have been identified from the weak coupling $\pi1g_{9/2}$$\otimes$$^{92}_{40}$Zr and $\pi2p_{1/2}^{-1}$$\otimes$$^{94}_{42}$Mo configurations. A microscopic interpretation of such excitations is attained from shell-model calculations using low-momentum effective interactions.

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J. N. Orce, J. D. Holt, A. Linnemann, C. J. McKay, C. Fransen, J. Jolie, T. T. S. Kuo, S. R. Lesher, M. T. McEllistrem, N. Pietralla, V. Werner, S. W. Yates. 2010-07-16. Fermionic-bosonic couplings in a weakly-deformed odd-mass nucleus, $^{93}_{41}$Nb. https://doi.org/10.1103/physrevc.82.044317

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