Competing angular momentum mechanisms and nuclear shapes at high spin in 122Xe

Autor: M. A. Riley, J.F. Sharpey-Schafer, J. Simpson, Tord Bengtsson, S.M. Mullins, F {Hanna}, Heiko Timmers, Ramon Wyss, M. A. Bentley
Rok vydání: 1991
Předmět:
Zdroj: Physics Letters B. 262:388-393
ISSN: 0370-2693
DOI: 10.1016/0370-2693(91)90610-3
Popis: Discrete γ -ray transitions have been observed up to spin ∼30 in 122 Xe. A dramatic change in the mechanism by which this nucleus generates angular momentum is observed to occur above spin 20. The collective rotation of a prolate nucleus is replaced at high spin by a regime of non-collective single-particle states. Particularly favoured states are observed at high spin and by comparison with the predictions of the cranked Nilsson and Woods-Saxon models specific single-particle configurations are suggested. This gives information on the spectrum of single-particle states and the active orbitals which build high angular momentum states in this mass region.
Databáze: OpenAIRE