Evolving nuclear many-body forces with the similarity renormalization group
- Lawrence Livermore National Laboratory, P. O. Box 808, L-414, Livermore, California 94551 (United States)
In recent years, the Similarity Renormalization Group has provided a powerful and versatile means to soften interactions for ab initio nuclear calculations. The substantial contribution of both induced and initial three-body forces to the nuclear interaction has required the consistent evolution of free-space Hamiltonians in the three-particle space. We present the most recent progress on this work, extending the calculational capability to the p-shell nuclei and showing that the hierarchy of induced many-body forces is consistent with previous estimates. Calculations over a range of the flow parameter for {sup 6}Li, including fully evolved NN + 3N interactions, show moderate contributions due to induced four-body forces and display the same improved convergence properties as in lighter nuclei. A systematic analysis provides further evidence that the hierarchy of many-body forces is preserved.
- OSTI ID:
- 21499470
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 83, Issue 3; Other Information: DOI: 10.1103/PhysRevC.83.034301; (c) 2011 American Institute of Physics; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
Similar Records
Alternative similarity renormalization group generators in nuclear structure calculations
Evolution of Nuclear Many-Body Forces with the Similarity Renormalization Group