https://doi.org/10.1051/epjconf/201611304015
Properties of 4He and 6Li with improved chiral EFT interactions
1 Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA
2 Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
3 TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3, Canada
4 Institut für Theoretische Physik II, Ruhr-Universität Bochum, D-44780 Bochum, Germany
5 Department of Physics, The Ohio State University, Columbus, OH 43210, USA
6 M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland
7 Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
8 Dept. of Physics, Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan
9 Institut für Kernphysik, Institute for Advanced Simulation and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425 Jülich, Germany
10 Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, D-53115 Bonn, Germany
11 JARA - High Performance Computing, Forschungszentrum Jülich, D-52425 Jülich, Germany
a e-mail: pmaris@iastate.edu
Published online: 25 March 2016
We present recent results for 4He and 6Li obtained with improved NN interactions derived from chiral effective field theory up to N4LO. The many-body calculations are performed order-by-order in the chiral expansion. At N3LO and N4LO additional renormalization using the Similarity Renormalization Group is adopted to improve numerical convergence of the many-body calculations. We discuss results for the ground state energies, as well as the magnetic moment and the low-lying spectrum of 6Li.
© Owned by the authors, published by EDP Sciences, 2016
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