Calculation of the spectrum of 12Li by using the multistep shell model method in the complex energy plane

Z. X. Xu; R. J. Liotta; Chong Qi; T. Roger; P. Roussel-Chomaz; H. Savajols; R. Wyss

Calculation of the spectrum of 12Li by using the multistep shell model method in the complex energy plane

Nuclear Theory 2010-04-26 v1

Authors: Z. X. Xu , R. J. Liotta , Chong Qi , T. Roger , P. Roussel-Chomaz , H. Savajols , R. Wyss

Abstract

The unbound nucleus $^{12}$ Li is evaluated by using the multistep shell model in the complex energy plane assuming that the spectrum is determined by the motion of three neutrons outside the $^9$ Li core. It is found that the ground state of this system consists of an antibound $1/2^+$ state and that only this and a $1/2^-$ and a $5/2^+$ excited states are physically meaningful resonances.

Keywords

unbound nucleus lithium-12 multistep shell model complex energy plane resonance antibound state

Cite

@article{arxiv.1004.4083,
  title  = {Calculation of the spectrum of 12Li by using the multistep shell model method in the complex energy plane},
  author = {Z. X. Xu and R. J. Liotta and Chong Qi and T. Roger and P. Roussel-Chomaz and H. Savajols and R. Wyss},
  journal= {arXiv preprint arXiv:1004.4083},
  year   = {2010}
}

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9 pages, 5 tables, 7 figures, printer-friendly version

Calculation of the spectrum of 12Li by using the multistep shell model method in the complex energy plane

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