First observation of a proton intruder band below the Z = 50 major shell gap. Spectroscopy of 111In

An intruder band based on an h 11/2 proton has been observed in 111In. This is the first case to be identified below the Z = 50 major shell gap. As such, it sheds light on the relative importance of the deformed 2p-2h Sn-core state and the πh 11/2 intruder orbital to the onset of deformation near th...

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Bibliographic Details
Published in:Physics letters. B 1993-12, Vol.318 (4), p.592-596
Main Authors: Mullins, S.M., Janzen, V.P., Vaska, P., Fossan, D.B., Hackman, G., LaFosse, D.R., Paul, E.S., Prévost, D., Schnare, H., Waddington, J.C., Wadsworth, R., Ward, D., Waring, M.P.
Format: Article
Language:English
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Summary:An intruder band based on an h 11/2 proton has been observed in 111In. This is the first case to be identified below the Z = 50 major shell gap. As such, it sheds light on the relative importance of the deformed 2p-2h Sn-core state and the πh 11/2 intruder orbital to the onset of deformation near the Z = 50 “magic” proton number.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(93)90459-U