Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2004-12-28
Physics
Nuclear Physics
Nuclear Theory
26 pages, 10 figures
Scientific paper
The Bloch-Horowitz (BH) equation has been successfully applied to calculating the binding energies of the deuteron and 3H/3He systems. For the three-body systems, BH was found to be perturbative for certain choices of the harmonic oscillator (HO) parameter b. We extend upon this work by applying this formalism to the alpha particle and certain five-, six-, and seven-body nuclei in the p-shell. Furthermore, we use only the leading order BH term and work in the smallest allowed included-spaces for each few-body system (0hw and 2hw). We show how to calculate A-body matrix elements within this formalism. Stationary solutions are found for all nuclei investigated within this work. The calculated binding energy of the alpha particle differs by ~1 MeV from Faddeev-Yakubovsky calculations. However, calculated energies of p-shell nuclei are underbound, leaving p-shell nuclei that are susceptible to cluster breakup. Furthermore, convergence is suspect when the size of the included-space is increased. We attribute this undesirable behavior to lack of a sufficiently binding mean-field.
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