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

Abstract

No-Core Gamow Shell Model (NCGSM) is applied for the first time 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 Schrödinger equation. To test the validity of our approach, we benchmarked the NCGSM results against Faddeev and Faddeev-Yakubovsky exact calculations for 3H and 4He nuclei. In this paper, we also performed ab initio NCGSM calculations for the unstable nucleus 5He and determined the ground state energy and decay width, starting from a realistic N3LO chiral interaction.

Authors:
 [1];  [2];  [3];  [4];  [1]
  1. Univ. of Arizona, Tucson, AZ (United States). Dept. of Physics
  2. Chalmers Univ. of Technology, Göteborg (Sweden). Fundamental Physics
  3. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy; Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab., and Dept. of Physics and Astronomy
  4. Grand Accélérateur National d’Ions Lourds (GANIL), Caen (France)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); UT-Battelle LLC/ORNL, Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1565203
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 88; Journal Issue: 4; Journal ID: ISSN 0556-2813
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; physics

Citation Formats

Papadimitriou, G., Rotureau, J., Michel, N., Płoszajczak, M., and Barrett, B. R. Ab initio no-core Gamow shell model calculations with realistic interactions. United States: N. p., 2013. Web. doi:10.1103/physrevc.88.044318.
Papadimitriou, G., Rotureau, J., Michel, N., Płoszajczak, M., & Barrett, B. R. Ab initio no-core Gamow shell model calculations with realistic interactions. United States. doi:10.1103/physrevc.88.044318.
Papadimitriou, G., Rotureau, J., Michel, N., Płoszajczak, M., and Barrett, B. R. Tue . "Ab initio no-core Gamow shell model calculations with realistic interactions". United States. doi:10.1103/physrevc.88.044318. https://www.osti.gov/servlets/purl/1565203.
@article{osti_1565203,
title = {Ab initio no-core Gamow shell model calculations with realistic interactions},
author = {Papadimitriou, G. and Rotureau, J. and Michel, N. and Płoszajczak, M. and Barrett, B. R.},
abstractNote = {No-Core Gamow Shell Model (NCGSM) is applied for the first time 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 Schrödinger equation. To test the validity of our approach, we benchmarked the NCGSM results against Faddeev and Faddeev-Yakubovsky exact calculations for 3H and 4He nuclei. In this paper, we also performed ab initio NCGSM calculations for the unstable nucleus 5He and determined the ground state energy and decay width, starting from a realistic N3LO chiral interaction.},
doi = {10.1103/physrevc.88.044318},
journal = {Physical Review. C, Nuclear Physics},
number = 4,
volume = 88,
place = {United States},
year = {2013},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 46 works
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Figures / Tables:

FIG. 1 FIG. 1: An illustration of the Berggren s.p. basis used in the NCGSM, showing the position of resonant (bound states and resonances) states in the complex $k$-plane. The non-resonant continuum states lie along the complex contour $L$+.

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