Choisissez le fuseau horaire
Le fuseau horaire de votre profil:
Physique Nucléaire
Exotic rotations and seniority isomers in Nd nuclei
par
→
Europe/Paris
bat 27
bat 27
Description
The existence of triaxial nuclei has been the subject of a long standing debate. The possibility
of soft and rigid triaxiality has been proposed very early, and many theoretical and experimental
studies have been devoted to this intriguing phenomenon since then. More recently two unique
fingerprints of triaxiality in nuclei have been intensively studied: the wobbling motion and the
dynamic chirality. We have recently studied the Nd nuclei up to very high spins and identified
a multitude of bands, which were interpreted as the manifestation of a stable triaxial nuclear
shape, presenting various types of collective motion: tilted axis and principal axis rotation,
wobbling motion, chiral bands. Another phenomenon revealed by our recent results on the Nd
nuclei with neutron numbers just below the N=82 shell closure is the shape coexistence. It is
induced by the existence of high-spin seniority isomers built on a spherical shape which are
surrounded by triaxial bands. The implications of the newly identified high-spin isomers will
be discussed.
of soft and rigid triaxiality has been proposed very early, and many theoretical and experimental
studies have been devoted to this intriguing phenomenon since then. More recently two unique
fingerprints of triaxiality in nuclei have been intensively studied: the wobbling motion and the
dynamic chirality. We have recently studied the Nd nuclei up to very high spins and identified
a multitude of bands, which were interpreted as the manifestation of a stable triaxial nuclear
shape, presenting various types of collective motion: tilted axis and principal axis rotation,
wobbling motion, chiral bands. Another phenomenon revealed by our recent results on the Nd
nuclei with neutron numbers just below the N=82 shell closure is the shape coexistence. It is
induced by the existence of high-spin seniority isomers built on a spherical shape which are
surrounded by triaxial bands. The implications of the newly identified high-spin isomers will
be discussed.
