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.
scattering
light-nuclei
asymptotic normalization coefficients
nuclear-reactions
resonances
threshold
unified theory
states
matrix renormalization-group
quantum-systems
Författare
G. Papadimitriou
Jimmy Rotureau
Chalmers, Teknisk fysik, Subatomär fysik
N. Michel
M. Ploszajczak
B. R. Barrett
Physical Review C - Nuclear Physics
24699985 (ISSN) 24699993 (eISSN)
Vol. 88 4 044318Ab initio approach to nuclear structure and reactions (++) (ANSR)
Europeiska kommissionen (EU) (EC/FP7/240603), 2009-12-01 -- 2014-11-30.
Ämneskategorier
Atom- och molekylfysik och optik
DOI
10.1103/PhysRevC.88.044318