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High-spin study of Xe

Authors:	H C Scraggs E S Paul A J Boston J F C Cocks D M Cullen K Helariutta P M Jones R Julin S Juutinen H Kankaanp M Muikku P J Nolan C M Parry A Savelius R Wadsworth A V Afanasjev I Ragnarsson

Institution:	^a Oliver Lodge Laboratory, University of Liverpool, P.O. Box 147, Liverpool L69 7ZE, UK ^b Department of Physics, University of Jyväskylä, P.O. Box 35, FIN-40351, Jyväskylä, Finland ^c Department of Physics, University of York, Heslington, York YO1 5DD, UK ^d Department of Mathematical Physics, University of Lund, P.O. Box 118, S-22100, Lund, Sweden ^e Nuclear Research Centre, Latvian Academy of Sciences, LV-2169, Salaspils, Miera str. 31, Latvia

Abstract:	High-spin states have been populated in ₅₄¹¹⁹Xe via the ⁹⁶Mo(²⁷Al,p3n) reaction at 133 MeV, using the γ-ray spectrometer to record triple γ-ray coincidences. The known level scheme has been significantly extended and several band crossings identified. In particular, the νh_11/2 yrast band has been extended to I^π = (83/2^?) and shows features which are consistent with those of smooth band termination at high spin. Theoretical results for ¹¹⁹Xe at high spin are discussed within the framework of cranked Nilsson-Strutinsky calculations, together with results for ¹¹⁷Xe.

Keywords:	Nuclear reactions
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