Conférences et séminaires » Séminaire du Dr Javier Valiente Dobon, le 16/2, Salle de Visioconférences
Dernière mise à jour
Evidence for non-termination of rotational bands in 74Kr.
Dr Javier Valiente Dobon
(Laboratori Nazionale di Legnaro, Italie)
le Jeudi 16 février 2006 à 16 h00
Salle de Visioconférences - Bâtiment 25
IReS, 23 rue du Loess, Strasbourg-Cronenbourg
The atomic nucleus reveals a number of features of a finite many-fermion quantum mechanical system which either do not exist or cannot be experimentally measured in other systems. One of these unique features is smooth band termination, namely a continuous transition within the same configuration from collective rotation at low spin to a non-collective single-particle (terminating) state at maximum spin Imax. Such terminating bands have been studied in detail during the last decade. However for a long time it has been predicted that not all the bands terminate in a non-collective state, i.e. some bands show strong collectivity even at I=Imax. Recently we have observed experimentally the first strong indication in 74Kr that this process takes place in nuclei.