The webmaster has recently (9/1/2007) contacted Dr. Malcolm Mac Gregor, a nuclear physicist that proposed a cluster model of the atomic nucleus in his 1976 paper titled "Evidence for two-dimensional Ising structure in atomic nuclei", Nuovo Cimento, 36A, 113-170, 1976. Dr. Mac Gregor indicated that additional information about his cluster model is found in his 1978 book titled "The Nature of the Elementary Particle", 1978, Springer, now out of print, but available from Amazon.com. The Mac Gregor model is also discussed in the 2006 textbook of Norman Cook discussed below in this What's New for 2007 section (Post #1, 2007). A web page with publications by Dr. Mac Gregor is found at this link: www.70mev.org 

There is potential for a very important overlap in information (for both structure and dynamics of atomic nucleus) between the Linus Pauling Close-Packed Spheron Model (1965), the Mac Gregor Two-Dimension Ising Model (1976), the Brightsen Nucleon Cluster Model (1983), and the Peter Fimmel Extended Nuclear Cluster Model (2004)--however, to the knowledge of the webmaster these four models have never been investigated in a comparative manner. Comments are Welcome.

This link provides exact copies of the research notebooks of Linus Pauling (1954 Nobel Prize in Chemistry).  In 1965 Dr. Pauling published his "Close-Packed Spheron Model" of the atomic nucleus.  The Pauling Spheron Model is in many ways in agreement with the Brightsen Nucleon Cluster Model.  View Notebook # 26 as a starting point to read the numerous peer reviewed publications by Dr. Pauling on his unique cluster model of the atomic nucleus. 

The Extended Nuclear Cluster Model (2004 publication) of Dr. Peter Fimmel is very similar to the Brightsen Nucleon Cluster Model, but differs because it views the alpha as a fundamental cluster, whereas the Brightsen Model views the alpha as two bound [N-P] clusters each with their own spin. The Fimmel Model also does not include matter and antimatter cluster potential within isotopes that is predicted by the Brightsen Model.

A 2004 powerpoint presentation by Dr. Thomas Neff at a conference held at Argonne National Laboratory.  Open program to view presentation.

International Review of Nuclear Physics - Vol. 4 , 1987

CLUSTER MODELS AND OTHER TOPICS

by Y Akaishi (Hokkaido), S A Chin (Texas A&M), Horiuchi (Kyoto) & K Ikeda (Niigata)

This volume consists of contributions from some of Japan's most eminent nuclear theorists. The cluster model of the nucleus is discussed pedagogically and the current status of the field is surveyed. A contribution on Monte Carlo Methods and Lattice Gauge Theories gives nuclear theorists a glimpse of related developments in QCD and Gauge Theories. Few Body Systems are reviewed by Y Akaishi, paying special attention to the ATMS Multiple Scattering Method.

Contents:

• Cluster Model of the Nucleus (H Horiuchi & K Ikeda)
• Few-Body System in Realistic Interaction (Y Akaishi)
• A Primer in Monte Carlo Methods and Lattice Gauge Theories (S A Chin)

The Interacting Boson Model (IBM) comes in many different version (e.g., IBM-1, IBM-2, IBM-3, etc.) plus has been extended to include Fermions.  This link provides a 1998 review of the concept.  The IBM is similar to the Brightsen NCM in that they both predict that clusters of nucleons are fundamental structures in nuclear shells.