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HK: Physik der Hadronen und Kerne

HK 10: Poster Session: Nuclear Structure/Spectroscopy

HK 10.31: Poster

Dienstag, 9. März 2004, 13:30–15:30, Foyer

Characterisation of Molecular Structures in α-conjugate nuclei, using the Hückel Method. — •P. McEwan^1,2 and M. Freer¹ — ¹School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham, U.K. — ²Hahn-Meitner-Institut, Glienicker Straße 100, D-14109 Berlin, Germany.

The Hückel method is a variational technique used commonly in atomic molecular physics to model the wavefunctions of covalent electrons. The results presented here show its first thorough application to the behaviour of valence nucleons in light, molecular, nuclear structures, via the linear combination of single-particle wavefunctions in a harmonic oscillator potential. Molecular structures were found for oblate nuclei from ¹³C to ²⁵Mg, for prolate chain-state nuclei from ⁹Be to ²⁵Mg, and for the higher order 2:1 prolate nuclei ²¹Ne and ³³S. These structures are shown to be commensurate with the energy level scheme of the Deformed Harmonic Oscillator and the Nilsson model. Tentative links with experimentally observed states are also made.