Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2003-11-18
Eur.Phys.J. A19 (2004) 143-146
Physics
Nuclear Physics
Nuclear Theory
5 pages, 5 EPS figures. Presented by M. A. Braun at the Fourth International Conference on Hadronic Physics, Trieste (Italy),
Scientific paper
The role of rescattering due to the final state interaction (FSI) and the influence of the finite formation time (FFT) on the inclusive $D(e,e')X$ and exclusive $D(e,e'p)n$ electro-disintegration of the deuteron are studied in the cumulative kinematical region $x>1$ and moderate values of the 4-momentum transfer $Q^2=2\div 10$ (GeV/c)$^2$. The spins are averaged out. It is found that in the inclusive process the relative magnitude of rescattering steadily grows with $x$ and that at $x=1.7$ it has the same order as the plane wave impulse approximation (PWIA) contribution, with the finite formation time effects decreasing the rescattering contribution by $\sim 30$%. In the exclusive process, with increasing momentum transfer, FFT substantially reduces the effects from FSI, although the latter are still appreciable in the region of momentum transfer investigated.
Braun Mikhail A.
degli Atti Claudio Ciofi
Kaptari Leonid P.
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