Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/11119
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Type: | Journal article |
Title: | Two-frequency shell model for hypernuclei and meson-exchange hyperon-nucleon potentials |
Author: | Tzeng, Yiharn Tsay Tzeng, S. Y. Kuo, T. T. S. Lee, T-S. H. Stoks, V. G. J. |
Citation: | Physical Review C, 2000; 61(3):031305 |
Publisher: | American Physical Society |
Issue Date: | 2000 |
ISSN: | 0556-2813 |
School/Discipline: | School of Chemistry and Physics |
Statement of Responsibility: | Yiharn Tzeng, S. Y. Tsay Tzeng, T. T. S. Kuo, T.-S.H. Lee, and V. G. D. Stoks |
Abstract: | A two-frequency shell model is proposed for investigating the structure of hypernuclei starting with a hyperon-nucleon potential in free space. In a calculation using the folded-diagram method for Λ¹⁶O, the Λ single particle energy is found to have a saturation minimum at an oscillator frequency ħωΛ≈10MeV, for the Λ orbit, which is considerably smaller than ħωN=14MeV for the nucleon orbit. The spin-dependence parameters derived from the Nijmegen NSC89 and NSC97f potentials are similar, but both are rather different from those obtained with the Jülich-B potential. The ΛNN three-body interactions induced by ΛN-ΣN transitions are important for the spin parameters, but relatively unimportant for the low-lying states of Λ¹⁶O. |
Rights: | ©2000 The American Physical Society |
DOI: | 10.1103/PhysRevC.61.031305 |
Appears in Collections: | Special Research Centre for the Subatomic Structure of Matter publications |
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