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arXiv · 1704.08429

From chiral NN(N) interactions to giant and pygmy resonances via extended RPA

P. Papakonstantinou·R. Trippel·R. Roth
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Abstract

The properties of giant and pygmy resonances are calculated starting from chiral two-and three-nucleon interactions. The aim is to assess the predictive power of modern Hamiltonians and especially the role of the three-nucleon force. Methods based on the random-phase approximation (RPA) provide an optimal description of the modes of interest with minimal computational requirements. Here we discuss the giant resonances (GRs) of 40,48Ca isotopes and their low-energy dipole response. A comparison with previous results obtained with a transformed Argonne V18 two-nucleon potential points to certain improvements.

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P. Papakonstantinou, R. Trippel, R. Roth. 2017-04-27. From chiral NN(N) interactions to giant and pygmy resonances via extended RPA. https://doi.org/10.5506/aphyspolb.48.537

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