January 2017

Journal

RECENT RESULTS AT ULTRAHIGH SPIN: TERMINATING STATES AND BEYOND IN MASS 160 RARE-EARTH NUCLEI

By:
Paul, E.; Rees, J.; Hampson, P.; Riley, M.; Simpson, J; Ayangeakaa, A.; Baron, J.; Carpenter, M.; Chiara, C.; Garg, U.; Hartley, D; Hoffman, C.R.; Janssens, R.; Kondev, F.; Lauritsen, T.; Mason, P.; Matta, J.; Miller, S.; Nolan, P.; Ollier, J.; Petri, M.; Radford, D.; Revill, J.; Wang, X.; Zhu, S.; Ragnarsson, I.
Journal Name:
Acta Physica Polonica B
Page Number:
487-496
Volume:
46
Issue Number:
3
Publication Date:
January 4, 2017
View DOI Listing:
https://doi.org/10.5506/APhysPolB.46.487

Abstract

A classic region of band termination at high spin occurs in rare-earth nuclei with around ten valence nucleons above the Gd-146 closed core. Results are presented here for such non-collective oblate (gamma = 60 degrees) terminating states in odd-Z Ho-155, odd-odd Ho-156, and even-even Er-156, where they are compared with neighbouring nuclei. In addition to these particularly favoured states, the occurrence of collective triaxial strongly deformed (TSD) bands, bypassing the terminating states and extending to over 65 (h) over bar, is reviewed.