Improved nuclear matter calculations from chiral low-momentum interactions
K. HebelerDepartment of Physics, The Ohio State University, Columbus, Ohio 43210, USAS. K. BognerNational Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48844, USAR. J. FurnstahlDepartment of Physics, The Ohio State University, Columbus, Ohio 43210, USAA. NoggaInstitute for Advanced Simulations, Institut für Kernphysik and Jülich Centre for Hadron Physics, Forschungszentrum Jülich, D-52425 Jülich, GermanyA. SchwenkExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
2011en
ABI
Аннотация
We present nuclear matter calculations based on low-momentum interactions derived from chiral effective field theory potentials. The current calculations use an improved treatment of the three-nucleon force (3NF) contribution that includes a corrected combinatorial factor beyond Hartree-Fock that was omitted in previous nuclear matter calculations. We find realistic saturation properties using parameters fit only to few-body data, but with larger uncertainty estimates from cutoff dependence and the 3NF parametrization than in previous calculations.
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