Abstract.
The heavy actinide nucleus 253No (Z = 102) was studied using the (S)ilicon (A)nd (Ge)rmanium (SAGE) spectrometer allowing simultaneous in-beam \(\gamma\)-ray and conversion electron spectroscopy at the accelerator laboratory of the University of Jyväskylä. Using the recoil-tagging technique, \(\gamma\)-electron coincidences have allowed for the extension of the level scheme in the lower-spin region of the yrast band. In addition, internal conversion coefficient (ICC) measurements to establish the multipolarity of transitions have been performed. Measurement of the interband-intraband branching ratios supports the assignment of the Nilsson band-head configuration \(9/2^{-}[734]\) assigned in previous studies. The study shows the viability of combined in-beam electron and \(\gamma\)-ray spectroscopy down to μb cross sections.
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Mistry, A.K., Herzberg, R.D., Greenlees, P.T. et al. In-beam study of 253No using the SAGE spectrometer. Eur. Phys. J. A 53, 24 (2017). https://doi.org/10.1140/epja/i2017-12215-8
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DOI: https://doi.org/10.1140/epja/i2017-12215-8