THEORETICAL-STUDIES OF LIGHT HALO NUCLEI - BOUND-STATES AND CONTINUUM

Hiking along the rugged coastlines of fundamental matter has been high ly rewarding. Striking halo clusterizations of matter into a normal co re and a loosely bound low density veil of neutrons seem to be more a rule than an exception. Thus we may study matter with very low density . We discuss the development of a theoretical understanding of driplin e matter and present results of recent investigations of what specific features the continuum of a system with a halo ground state may have.