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Static response of Fermi liquids with tensor interactions | | E. Olsson
; P. Haensel
; C. J. Pethick
; | | Date: |
22 Mar 2004 | | Journal: | Phys.Rev. C70 (2004) 025804 | | Subject: | nucl-th astro-ph | | Abstract: | We use Landau’s theory of a normal Fermi liquid to derive expressions for the static response of a system with a general tensor interaction that conserves the total spin and the total angular momentum of the quasiparticle-quasihole pair. The magnetic susceptibility is calculated in detail, with the inclusion of the center of mass tensor and cross vector terms in addition to the exchange tensor one. We also introduce a new parametrization of the tensor Landau parameters which significantly reduces the importance of high angular harmonic contributions. For nuclear matter and neutron matter we find that the two most important effects of the tensor interaction are to give a contribution from multipair states and to renormalize the magnetic moments. Response to a weak probe may be calculated using similar methods, replacing the magnetic moments with the matrix elements of the weak charges. | | Source: | arXiv, nucl-th/0403066 | | Services: | Forum | Review | PDF | Favorites | |
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