In our contribution to the INPC98 conference we reported on the experimental investigation of high spin collective states in medium and heavy mass N≈Z nuclei at LNL. The main purpose is to set light on the role of the proton-neutron interaction in the collective behavior of the nucleus. In medium mass N=Z nuclei, in contrast with the stable nuclei, valence protons and neutrons occupy the same orbitals and one may expect a reinforcement of neutron-proton T=0 (np) pairing correlations[1]. In this interesting subject, the medium mass N=Z=36 72Kr has been studied and completely reported in [2]. In this proceedings we will concentrate in unpublished results concerning the onset of collectivity on nearly spherical nuclei in the 100Sn region. In nuclei with Z=50 and Z=49 dipole bands have been found indicating the presence of "Magnetic Rotation" [3].

Collective excitations in the vicinity of N=Z

BELCARI, NICOLA;
1999

Abstract

In our contribution to the INPC98 conference we reported on the experimental investigation of high spin collective states in medium and heavy mass N≈Z nuclei at LNL. The main purpose is to set light on the role of the proton-neutron interaction in the collective behavior of the nucleus. In medium mass N=Z nuclei, in contrast with the stable nuclei, valence protons and neutrons occupy the same orbitals and one may expect a reinforcement of neutron-proton T=0 (np) pairing correlations[1]. In this interesting subject, the medium mass N=Z=36 72Kr has been studied and completely reported in [2]. In this proceedings we will concentrate in unpublished results concerning the onset of collectivity on nearly spherical nuclei in the 100Sn region. In nuclei with Z=50 and Z=49 dipole bands have been found indicating the presence of "Magnetic Rotation" [3].
De Angelis, G; Belcari, Nicola; De Acuña, D; Napoli, Dr; Martinez, T; De Poli, M; Spolaore, P; Prete, G; Fioretto, E; Bednarczyk, P; Gadea, A; Farnea, E; Ur, Ca; Bazzacco, D; Lenzi, Sm; Lunardi, S; Pavan, P; Alvarez, Cr; Soramel, F; Bizzeti, Pg; Bizzeti Sona, Am; Grawe, H; Schubart, R; Johnson, A; Wyss, R; Xu, F; Blasi, N; Lo Bianco, G; Nyberg, J; Persson, J; Fahlander, C; Rudolph, D; Frauendorf, S.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/168052
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