Bulg. J. Phys. vol.19 no.1-2 (1992), pp. 011-021

Alpha-Particle Momentum Distributions in Nuclei within the Coherent Density Fluctuations Model

A.N. Antonov1, E.N. Nikolov1, I.Zh. Petkov1, P.E. Hodgson2, G.A. Lalazissis3
1Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia 1784, Bulgaria
2Nuclear Physics Laboratory, University of Oxford, Oxford OX1-3RH, UK
3Theoretical Physics Department, University of Thessaloniki, 54006 Thessaloniki, Greece
Abstract. The alpha-particle centre of mass momentum distribution in nuclei is determined on the basis of four-body density matrix obtained within the coherent density fluctuation model. The calculations are carried out for 9Be, 12C, 16O, 20Ne, 24Mg, 28Si, 32S and 40Ca nuclei. The results are compared with those deduced from analyses of experimental data on alpha-particle knockout reactions induced by electrons, protons and alpha-particles which provide information on alpha-particle momentum distribution.

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