Accurate nuclear radii and binding energies from a chiral interaction

By A. Ekström, G. Jansen, K. Wendt, Gaute Hagen, Thomas Papenbrock, B. Carlsson, C. Forssén, M. Hjorth-Jensen, Petr Navrátil, Witold Nazarewicz. 2015

331 citations recorded by the source corpus.

With the goal of developing predictive ab initio capability for light and medium-mass nuclei, two-nucleon and three-nucleon forces from chiral effective field theory are optimized simultaneously to low-energy nucleon-nucleon scattering data, as well as binding energies and radii of few-nucleon systems and selected isotopes of carbon and oxygen. Coupled-cluster calculations based on this interaction, named NNLOsat, yield accurate binding energies and radii of nuclei up to Ca-40, and are consistent with the empirical saturation point of symmetric nuclear matter. In addition, the low-lying collective J(pi) = 3(-) states in O-16 and 40Ca are described accurately, while spectra for selected p- and sd-shell nuclei are in reasonable agreement with experiment.

Subfields: Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/63dc5b94ccfd418d5ab7d4324b48a5b9265873b4

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Citations in the corpus

The In-Medium Similarity Renormalization Group: A novel ab initio method for nuclei (2015, background): “a variety of efforts to improve on the chiral interactions [30, 145, 146, 147, 148, 149, 150, 151, 152, 153].”
High-Precision Nuclear Forces From Chiral EFT: State-of-the-Art, Challenges, and Outlook (2019, background): “A broad range of few- and many-body observables including the binding energies and radii of 3H, 4He, and heavier nuclei, nucleon-deuteron doublet scattering length 2a, n-α scattering, triton β-decay, and the saturation properties of nuclear matter have been proposed and employed in the past to deter”
Nuclear equation of state from ground and collective excited state properties of nuclei (2018, background): “For the NNLOsat interaction, the model calculations reproduce experimental αD values in 4He, 16O, however, in 22O the theoretical result exceeds the experimental value by a factor of two [334].”
A Guided Tour of ab initio Nuclear Many-Body Theory (2020, background): “This work resulted in the so-called NNLOsat interaction [194].”
Unified equation of state for neutron stars on a microscopic basis (2015, background): “Indeed it turns out (Coraggio et al. 2014; Ekström et al. 2015) that within this class of interactions a compatible treatment of few-nucleon systems and nuclear matter is possible.”