Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2003-12-18
Phys.Rev. C70 (2004) 044608
Physics
Nuclear Physics
Nuclear Theory
26 pages, 5 figures. Improved and extended version. To be published in Phys. Rev. C
Scientific paper
10.1103/PhysRevC.70.044608
We study the occurrence of factorization in polarized and unpolarized observables in coincidence quasi-elastic electron scattering. Starting with the relativistic distorted wave impulse approximation, we reformulate the effective momentum approximation and show that the latter leads to observables which factorize under some specific conditions. Within this framework, the role played by final state interactions and, in particular, by the spin-orbit term is explored. Connection with the nonrelativistic formalism is studied in depth. Numerical results are presented to illustrate the analytical derivations and to quantify the differences between factorized and unfactorized approaches.
Caballero Jose Antonio
de Guerra Moya E.
Martínez M. C.
Udias J. M.
Vignote Javier R.
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