Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2008-11-11
Nucl.Phys.A826:24-48,2009
Physics
Nuclear Physics
Nuclear Theory
22 pages, 2 tables, submitted to Nuclear Physics A
Scientific paper
10.1016/j.nuclphysa.2009.05.071
Within the microscopic model based on the algebraic version of the resonating group method the role of the Pauli principle in the formation of continuum wave function of nuclear systems composed of three identical $s$-clusters has been investigated. Emphasis is placed upon the study of the exchange effects contained in the genuine three-cluster norm kernel. Three-fermion, three-boson, three-dineutron ($3d'$) and $3\alpha$ systems are considered in detail. Simple analytical method of constructing the norm kernel for $3\alpha$ system is suggested. The Pauli-allowed basis functions for the $3\alpha$ and $3d'$ systems are given in an explicit form and asymptotic behavior of these functions is established. Complete classification of the eigenfunctions and the eigenvalues of the $^{12}$C norm kernel by the $^8$Be$=\alpha+\alpha$ eigenvalues has been given for the first time. Spectrum of the $^{12}$C norm kernel is compared to that of the $^{5}$H system.
Filippov Gennady
Lashko Yuliya
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