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Nuclear transparency in quasielastic A(e,e'p): intranuclear cascade versus eikonal approximation

Ye. S. Golubeva, L. A. Kondratyuk, A. Bianconi, S. Boffi, M. Radici

nucl-tharXiv:nucl-th/9712040

Abstract

The problem of nuclear propagation through the nuclear medium in quasielastic A(e,e'p) reactions is discussed in the kinematic range 1<Q2<7 (GeV/c)2. The coefficient of nuclear transparency is calculated for each Q2 in the framework of the intranuclear cascade model (INC) and of the eikonal approximation (EA). The predictions of both models are in good agreement with each other and with experimental data recently obtained at SLAC, BATES and TJNAF. The EA gives an explanation of the Q2 behaviour of the transparency coefficient as a kinematic effect related to the superposition of contributions from each target shell.

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