Optimized Chiral Nucleon-Nucleon Interaction at Next-to-Next-to-Leading Order
Journal article, 2013

We optimize the nucleon-nucleon interaction from chiral effective field theory at next-to-next-to-leading order (NNLO). The resulting new chiral force NNLOopt yields chi(2) approximate to 1 per degree of freedom for laboratory energies below approximately 125 MeV. In the A = 3, 4 nucleon systems, the contributions of three-nucleon forces are smaller than for previous parametrizations of chiral interactions. We use NNLOopt to study properties of key nuclei and neutron matter, and we demonstrate that many aspects of nuclear structure can be understood in terms of this nucleon-nucleon interaction, without explicitly invoking three-nucleon forces.

momentum-space

scattering data

systems

forces

deuteron

shift

effective-field theory

Author

A. Ekstrom

Michigan State University

University of Oslo

G. Baardsen

University of Oslo

Christian Forssen

Chalmers, Applied Physics, Subatomic Physics

G. Hagen

University of Tennessee

Oak Ridge National Laboratory

M. Hjorth-Jensen

University of Oslo

Michigan State University

G. R. Jansen

Oak Ridge National Laboratory

University of Tennessee

R. Machleidt

University of Idaho

W. Nazarewicz

Oak Ridge National Laboratory

University of Tennessee

University of Warsaw

T. Papenbrock

Oak Ridge National Laboratory

University of Tennessee

J. Sarich

Argonne National Laboratory

S. M. Wild

Argonne National Laboratory

Physical Review Letters

0031-9007 (ISSN) 1079-7114 (eISSN)

Vol. 110 19 Art. no. 192502- 192502

Ab initio approach to nuclear structure and reactions (++) (ANSR)

European Commission (FP7), 2009-12-01 -- 2014-11-30.

Subject Categories

Subatomic Physics

Physical Sciences

Roots

Basic sciences

DOI

10.1103/PhysRevLett.110.192502

More information

Latest update

5/8/2018 6