Ab-initio No-Core Gamow Shell Model calculations with realistic
  interactions

There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

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 Schr\"{o}dinger equation. To test the validity of our approach, we benchmarked the NCGSM results against Faddeev and Faddeev-Yakubovsky exact calculations for \(^3\)H and \(^4\)He nuclei. We also performed {\textit ab initio} NCGSM calculations for the unstable nucleus \(^5\)He and determined the ground state energy and decay width, starting from a realistic N\(^3\)LO chiral interaction.

Related collections

Most cited references 28

Record: found
Abstract: not found
Article: not found

R-Matrix Theory of Nuclear Reactions

A M Lane, R. G. Thomas (1958)

0 comments Cited 588 times – based on 0 reviews      Review now

Bookmark

Record: found
Abstract: found
Article: found

Is Open Access

An accurate nucleon-nucleon potential with charge-independence breaking

V. Stoks, R. Schiavilla, R. B. Wiringa (1994)

We present a new high-quality nucleon-nucleon potential with explicit charge dependence and charge asymmetry, which we designate Argonne \(v_{18}\). The model has a charge-independent part with fourteen operator components that is an updated version of the Argonne \(v_{14}\) potential. Three additional charge-dependent and one charge-asymmetric operators are added, along with a complete electromagnetic interaction. The potential has been fit directly to the Nijmegen \(pp\) and \(np\) scattering data base, low-energy \(nn\) scattering parameters, and deuteron binding energy. With 40 adjustable parameters it gives a \(\chi^{2}\) per datum of 1.09 for 4301 \(pp\) and \(np\) data in the range 0--350 MeV.

0 comments Cited 330 times – based on 0 reviews

Preprint

     Review now

Bookmark

Record: found
Abstract: found
Article: found

Is Open Access

The high-precision, charge-dependent Bonn nucleon-nucleon potential (CD-Bonn)

R. Machleidt (2000)

We present a charge-dependent nucleon-nucleon (NN) potential that fits the world proton-proton data below 350 MeV available in the year of 2000 with a chi^2 per datum of 1.01 for 2932 data and the corresponding neutron-proton data with chi^2/datum = 1.02 for 3058 data. This reproduction of the NN data is more accurate than by any phase-shift analysis and any other NN potential. The charge-dependence of the present potential (that has been dubbed `CD-Bonn') is based upon the predictions by the Bonn Full Model for charge-symmetry and charge-independence breaking in all partial waves with J <= 4. The potential is represented in terms of the covariant Feynman amplitudes for one-boson exchange which are nonlocal. Therefore, the off-shell behavior of the CD-Bonn potential differs in a characteristic and well-founded way from commonly used local potentials and leads to larger binding energies in nuclear few- and many-body systems, where underbinding is a persistent problem.

0 comments Cited 275 times – based on 0 reviews

Preprint

     Review now

Bookmark

All references

Author and article information

Journal

Publication date Created: 29 January 2013

Publication date Updated: 2013-09-26

Article

DOI: 10.1103/PhysRevC.88.044318

ArXiV ID: 1301.7140

SO-VID: 64a67bfe-4fe4-4c50-8e2c-3b704569fe2f

License:

http://arxiv.org/licenses/nonexclusive-distrib/1.0/

History

Custom metadata

Comments 17 pages, 14 figures. Revised version. Discussion on microscopic overlap functions, SFs and ANCs is added. Added references. Accepted for publication at PRC

Categories nucl-th

Data availability: