Ab initio no-core Gamow shell model calculations with realistic interactions
Journal article, 2013

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.

scattering

light-nuclei

asymptotic normalization coefficients

nuclear-reactions

resonances

threshold

unified theory

states

matrix renormalization-group

quantum-systems

Author

G. Papadimitriou

Jimmy Rotureau

Chalmers, Applied Physics, Subatomic Physics

N. Michel

M. Ploszajczak

B. R. Barrett

Physical Review C - Nuclear Physics

24699985 (ISSN) 24699993 (eISSN)

Vol. 88 4 044318

Ab initio approach to nuclear structure and reactions (++) (ANSR)

European Commission (EC) (EC/FP7/240603), 2009-12-01 -- 2014-11-30.

Subject Categories

Atom and Molecular Physics and Optics

DOI

10.1103/PhysRevC.88.044318

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4/5/2022 7