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

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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Physical Review C, American Physical Society, 2015, 91, pp.014323. 〈10.1103/PhysRevC.91.014323〉
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http://hal.in2p3.fr/in2p3-01121078
Contributeur : Dominique Girod <>
Soumis le : vendredi 27 février 2015 - 12:46:57
Dernière modification le : jeudi 15 mars 2018 - 11:40:09

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D. Davesne, J. W. Holt, A. Pastore, J. Navarro. Effect of three-body forces on response functions in infinite neutron matter. Physical Review C, American Physical Society, 2015, 91, pp.014323. 〈10.1103/PhysRevC.91.014323〉. 〈in2p3-01121078〉

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