Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2007-12-24
Nucl.Phys.A806:124-145,2008
Physics
Nuclear Physics
Nuclear Theory
18 pages, 3 figures, 3 tables
Scientific paper
10.1016/j.nuclphysa.2008.03.003
New approach to the problem of multichannel continuum spectrum of three-cluster systems composed of an s-cluster and two neutrons is suggested based on the discrete representation of a complete basis of allowed states of the multiparticle harmonic oscillator. The structure of the eigenfunctions and behavior of the eigenvalues of the three-cluster norm kernel are analyzed. Classification of the eigenvalues of the three-cluster systems with the help of eigenvalues of the two-body subsystem is suggested. Asymptotic boundary conditions for a three-cluster wave function in the continuum consistent with the requirements of the Pauli principle are established. Such asymptotic behavior corresponds rather to subsequent decay of the three-cluster system than to the so-called "democratic decay" associated with the hyperspherical harmonics. The 3H+n+n configuration of the 5H nucleus is considered in detail.
Filippov Gennady
Lashko Yuliya
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