Work

Applying the density matrix expansion with coordinate-space chiral interactions

Year: 2017

Type: article

Abstract: We apply the density matrix expansion (DME) at Hartree-Fock level with long-range chiral effective field theory interactions defined in coordinate space up to next-to-next-to-leading order. We consider chiral potentials both with and without explicit $\mathrm{\ensuremath{\Delta}}$ isobars. The challenging algebra associated with applying the DME to three-nucleon forces is tamed using a new organization scheme, which will also facilitate generalizations. We include local regulators on the interactions to mitigate the effects of singular potentials on the DME couplings and simplify the optimization of generalized Skyrme-like functionals.

Source: Physical Review C

DOI: 10.1103/physrevc.95.054314

Authors: A. Dyhdalo, S. K. Bogner, R. J. Furnstahl

Institutions: The Ohio State University, National Superconducting Cyclotron Laboratory, Michigan State University

Language: English

Topic: Nuclear physics research studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, U.S. Department of Energy

Awards: Research in Strong-Interaction Theory, Research in Strong-Interaction Theory, NUCLEAR COMPUTATIONAL LOW ENERGY INITIATIVE (NUCLEI), NUCLEAR COMPUTATIONAL LOW ENERGY INITIATIVE (NUCLEI), Computational Nuclear Many-Body Physics