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Gamow Shell Model description of Li isotopes and their mirror partners by Mao, X.; Rotureau, J.; Nazarewicz, W.; Michel, N.; Betan, R. M. Id; Jaganathen, Y. is a scholarly article available to read on EtoBox.

What is Gamow Shell Model description of Li isotopes and their mirror partners about?

Background: Weakly bound and unbound nuclei close to particle drip lines are laboratories of new nuclear structure physics at the extremes of neutron/proton excess. The comprehensive description of these systems requires an open quantum system framework that is capable of treating resonant and nonresonant many-body states on equal footing. Purpose: In this work, we construct the minimal complex-energy configuration interaction approach to describe binding energies and spectra of selected 5 $\leq$ A $\leq$ 11 nuclei. Method: We employ the complex-energy Gamow shell model (GSM) assuming a rigid $^4$He core. The effective Hamiltonian, consisting of a core-nucleon Woods-Saxon potential and a simplified version of the Furutani-Horiuchi-Tamagaki interaction with the mass-dependent scaling, is optimized in the sp space. To diagonalize the Hamiltonian matrix, we employ the Davidson method and the Density Matrix Renormalization Group technique. Results: Our optimized GSM Hamiltonian offers a good reproduction of binding energies and spectra with the root-mean-square (rms) deviation from experiment of 160 keV. Since the model performs well when used to predict known excitations that have not

Author

Mao, X.; Rotureau, J.; Nazarewicz, W.; Michel, N.; Betan, R. M. Id; Jaganathen, Y.

Published

2020

Language

EN