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.
unified theory
light-nuclei
threshold
matrix renormalization-group
scattering
nuclear-reactions
states
resonances
quantum-systems
asymptotic normalization coefficients
Author
G. Papadimitriou
Jimmy Rotureau
Chalmers, Applied Physics, Subatomic Physics
N. Michel
M. Ploszajczak
B. R. Barrett
Physical Review C - Nuclear Physics
0556-2813 (ISSN) 1089-490X (eISSN)
Vol. 88 4Ab initio approach to nuclear structure and reactions (++) (ANSR)
European Commission (FP7) (240603), 2009-12-01 -- 2014-11-30.
Subject Categories (SSIF 2011)
Atom and Molecular Physics and Optics
DOI
10.1103/PhysRevC.88.044318