应核科学与技术学院邀请，法国巴黎南大学C. M. Petrache教授将来我校进行学术访问，并做学术报告。
报告题目："Chirality, oblate rotation, high-K isomers in nuclei: new achievements and perspectives"
The breaking of symmetries in quantum systems is one of the key issues in nuclear physics.In particular, the spontaneous symmetry breaking in rotating nuclei leads to exotic collectivemodes, like the chiral motion, which is an unique fingerprint of triaxiality in nuclei and havebeen intensively studied in recent years. We are currently involved in the study of Lanthanide nuclei. New results have been obtained recently and interpreted as the manifestation of a stable triaxial nuclear shape, presenting various types of collective motion, like tilted axis and principal axis rotation, chiral motion, rotation of nuclei with oblate shape at very high spins. Chiral bands in even-even nuclei, which were taught to be unfavored energetically, unstable against 3D rotation and difficult to observe, have been instead identified very recently in 136Nd. The experimental evidence of such bands will be presented and their theoretical interpretationwill be discussed. The experimental evidence of multiple chiral bands in several Lanthanides, aswell as the presence of competing collective oblate rotation up to very high spins in Nd nucleiwill also be discussed.
1981-1983 Engineer physicist at the Institute of Nuclear Reactors, Pitesti, Romania;
1983-1993 Research position at the Institute of Physics and Nuclear Engineering,Bucharest, Romania;
1991-1992 One year fellowship at INFN-Laboratori Nazionali di Legnaro, Italy;
1993-1994 One year fellowship at IRS Strasbourg, France;
1994-1999 Five year fellowship at INFN, Sezione di Padova, Italy;
1999-2005 Assistant professor at the University of Camerino, Italy;
2005-2006 Professor at the University of Camerino, Italy;
from 2006 Professor at the University Paris-Sud, France.