Ab initio no-core Gamow shell model calculations with realistic interactions
Artikel i vetenskaplig tidskrift, 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.

unified theory

light-nuclei

threshold

matrix renormalization-group

scattering

nuclear-reactions

states

resonances

quantum-systems

asymptotic normalization coefficients

Författare

G. Papadimitriou

Jimmy Rotureau

Chalmers, Teknisk fysik, Subatomär fysik

N. Michel

M. Ploszajczak

B. R. Barrett

Physical Review C - Nuclear Physics

0556-2813 (ISSN) 1089-490X (eISSN)

Vol. 88

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

Europeiska kommissionen (FP7), 2009-12-01 -- 2014-11-30.

Ämneskategorier

Atom- och molekylfysik och optik

DOI

10.1103/PhysRevC.88.044318