This volume contains the proceedings of the conference held in Cortona, October 6-9, 2004, that was organized as part of the project “Theoretical Physics of Nuclei and Many-Body Systems” involving 17 Italian Universities and sponsored by the Italian Ministery of Research and University. All invited papers on the main subjects of the project as well as all the individual contributions on special topics are included. As such these proceedings review the work performed in the last two years by the participating Italian community of nuclear theorists. In addition, in a panel international perspectives are focussed on the future programmes of the experimental physics community.

This volume gives a comprehensive overview of the latest research activity undertaken in the field of theoretical nuclear physics in Italy. Several topics of current interest are included: from nuclear matter and nuclear structure to nuclear astrophysics and quark-gluon plasma.

The 9th Conference on Problems in Theoretical Nuclear Physics was organized as part of the project “Theoretical Physics of Nuclei and Many-Body Systems” involving 17 Italian universities and sponsored by the Italian Ministry of Research and University.This volume includes the invited papers on the main subjects of the project and all the individual contributions on special topics. It reviews the work performed in the last two years by the participating Italian community of nuclear theorists. In addition, national and international perspectives are focussed by a panel on the future programmes of the large Italian laboratories and of the experimental community, as well as in a general review by A Faessler.