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arXiv · 1411.3117

Effect of three-body forces on response functions in infinite neutron matter

D. Davesne·J. W. Holt·A. Pastore·J. Navarro
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Abstract

We study the impact of three-body forces on the response functions of cold neutron matter. These response functions are determined in the random phase approximation (RPA) from a residual interaction expressed in terms of Landau parameters. Special attention is paid to the non-central part, including all terms allowed by the relevant symmetries. Using Landau parameters derived from realistic nuclear two- and three-body forces grounded in chiral effective field theory, we find that the three-body term has a strong impact on the excited states of the system and in the static and long-wavelength limit of the response functions for which a new exact formula is established.

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D. Davesne, J. W. Holt, A. Pastore, J. Navarro. 2014-11-12. Effect of three-body forces on response functions in infinite neutron matter. https://doi.org/10.1103/physrevc.91.014323

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