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Ab initio no-core Gamow shell model calculations with realistic interactions

G. Papadimitriou ; Jimmy Rotureau (Institutionen för fundamental fysik, Subatomär fysik) ; N. Michel ; M. Ploszajczak ; B. R. Barrett
Physical Review C (0556-2813). Vol. 88 (2013), 4,
[Artikel, refereegranskad vetenskaplig]

No-core Gamow shell model (NCGSM) is applied to study selected well-bound and unbound states of helium isotopes. This model is formulated on the complex energy plane and, by using a complete Berggren ensemble, treats bound, resonant, and scattering states on equal footing. We use the density matrix renormalization group method to solve the many-body Schrodinger equation. To test the validity of our approach, we benchmarked the NCGSM results against Faddeev and Faddeev-Yakubovsky exact calculations for H-3 and He-4 nuclei. We also performed ab initio NCGSM calculations for the unstable nucleus He-5 and determined the ground-state energy and decay width, starting from a realistic (NLO)-L-3 chiral interaction.

Nyckelord: asymptotic normalization coefficients, matrix renormalization-group, nuclear-reactions, quantum-systems, unified theory, light-nuclei, scattering, threshold, resonances, states



Denna post skapades 2013-11-14. Senast ändrad 2014-10-13.
CPL Pubid: 186708

 

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Institutioner (Chalmers)

Institutionen för fundamental fysik, Subatomär fysik (2005-2013)

Ämnesområden

Atomfysik

Chalmers infrastruktur

 


Projekt

Denna publikation är ett resultat av följande projekt:


Ab initio approach to nuclear structure and reactions (++) (ANSR) (EC/FP7/240603)