Brief Summary of Each Supplement
Progress of Theoretical Physics Supplement No. 132
Alpha-Clustering and Molecular Structure
of Medium-Weight and Heavy Nuclei
Edited by Shigeo Ohkubo
The cluster model (alongside the shell model and collective model)
is a powerful tool for the description of nuclear structure and
reactions. However, to date, it has been confined to light nuclei. It has been
a fundamental question for a long time whether the cluster model can
be extended to nuclei heavier than A=40. Recently it has been made clear
by the authors of this volume that the cluster model is indeed valid in
heavier nuclei.
This volume contains review articles of the latest results
of research on alpha-clustering and molecular structure of
medium-weight and heavy nuclei carried
out under the research projects of the Yukawa Institute for Theoretical
Physics. The papers review comprehensively the
alpha-nucleus interaction and alpha-cluster structure in nuclei
(predicting its existence in the 44Ti region and in heavy nuclei),
observations of alpha-cluster states in the 44Ti region, microscopic
studies of alpha-clustering, molecular structure at highly excited
energies in medium-weight nuclei, many-body theory of alpha-clustering
in the surface and interior of medium-weight and heavy nuclei, and
alpha-cluster matter.
The cluster model will also be useful in unstable nuclei,
hyper-nuclei and nuclear astrophysics involving heavy nuclei.
The concept of clustering is also useful in other branches of
physics. Therefore this volume is highly appropriate for students
coming into nuclear physics, and also it gives good reviews of the
present status and future prospects at a level accessible to
the general researcher.
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