Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1999-03-12
Phys.Rev. C59 (1999) 2396-2401
Physics
Nuclear Physics
Nuclear Theory
16 pages, 6 figures, accepted for publication by Phys.Rev.C
Scientific paper
10.1103/PhysRevC.59.2396
Differential cross sections for the electro-disintegration process $e + {^4He} \longrightarrow {^3H}+ p + e'$ are calculated, using a model in which the final state interaction is included by means of a nucleon-nucleus (3+1) potential constructed via Marchenko inversion. The required bound-state wave functions are calculated within the integrodifferential equation approach (IDEA). In our model the important condition that the initial bound state and the final scattering state are orthogonal is fulfilled. The sensitivity of the cross section to the input $p{^3H}$ interaction in certain kinematical regions is investigated. The approach adopted could be useful in reactions involving few cluster systems where effective interactions are not well known and exact methods are presently unavailable. Although, our Plane-Wave Impulse Approximation results exhibit, similarly to other calculations, a dip in the five-fold differential cross-section around a missing momentum of $\sim 450 MeV/c$, it is argued that this is an artifact of the omission of re-scattering four-nucleon processes.
Braun Matthias
Howell Leonard
Sandhas Werner
Sofianos S. A.
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