n-mesic nuclei in relativistic mean-field theory

With the n-nucleon (TIN) interaction Lagrangian deduced from chiral perturbation theory, we study the possible n-mesic nuclei in the framework of relativistic mean-field theory. The n single-particle energies are sensitive to the TIN scattering length, and increase monotonically with the nucleon num...

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Bibliographic Details
Published in:Europhysics letters 2008-02, Vol.81 (4), p.42002-pl/42002-p6
Main Authors: Song, C Y, Zhong, X H, Li, L, Ning, P Z
Format: Article
Language:English
Online Access:Get full text
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Summary:With the n-nucleon (TIN) interaction Lagrangian deduced from chiral perturbation theory, we study the possible n-mesic nuclei in the framework of relativistic mean-field theory. The n single-particle energies are sensitive to the TIN scattering length, and increase monotonically with the nucleon number A. If the scattering length is in the range of ON = 0.75-1.05 fm and the imaginary potential Vo 15 MeV, some discrete states of 12C, ,160 and ,2 Ne should be identified in experiments. However, when the scattering length anN < 0.5 fm, or the imaginary potential Vo > 30 MeV, no discrete n-meson bound states could be observed in experiments.
ISSN:0295-5075
DOI:10.1209/0295-5075/81/42002