Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1996-08-10
J.Exp.Theor.Phys. 83 (1996) 1063-1079; Zh.Eksp.Teor.Fiz. 110 (1996) 1933-1959
Physics
Nuclear Physics
Nuclear Theory
Latex, 35 pages, 17 figures
Scientific paper
We explore the missing momentum dependence of the CT effects in quasielastic (e,e'p) scattering. We develop the coupled-channel multiple-scattering theory (CCMST) description of final-state interaction including both the coherent and incoherent rescatterings of the ejectile state. We demonstrate that the contribution of the off-diagonal incoherent rescattering does not vanish at low Q^{2} which is a novel correction to the conventional Glauber theory evaluation of nuclear transparency. We comment on the nontrivial impact of this correction on the onset of CT. The sensitivity of the onset of CT to the 3q-nucleon reggeon amplitudes is discussed for the first time. We present numerical results for nuclear transparency as a function of the missing momentum for exclusive (e,e'p) reaction in the kinematical region of Q^{2} \le 40 GeV^{2} and p_{m} \le 250$ MeV/c. Our evaluations show that at Q^{2}\sim 10 CT effects are substantial only in antiparallel kinematics at p_{m,z}\sim -250 MeV/c. The effect is enhanced on light nuclei and could be observed in a high precision experiment.
Benhar Omar
Fantoni Stefano
Nikolaev Nikolai N.
Speth Josef
Usmani A. A.
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