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Analysis of exchange terms in a projected ERPA Theory applied to the quasi-elastic (e,e') reaction

E. Bauer·A. Polls·A. Ramos
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Abstract

A systematic study of the influence of exchange terms in the longitudinal and transverse nuclear response to quasi-elastic (e,e') reactions is presented. The study is performed within the framework of the extended random phase approximation (ERPA), which in conjuction with a projection method permits a separation of various contributions tied to different physical processes. The calculations are performed in nuclear matter up to second order in the residual interaction for which we take a (pi+rho)-model with the addition of the Landau-Migdal g'-parameter. Exchange terms are found to be important only for the RPA-type contributions around the quasielastic peak.

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E. Bauer, A. Polls, A. Ramos. 1998-03-09. Analysis of exchange terms in a projected ERPA Theory applied to the quasi-elastic (e,e') reaction. https://doi.org/10.1103/physrevc.58.1052

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