dorsal/arxiv
View SchemaRescattering and finite formation time effects in inclusive and exclusive electro-disintegration of nuclei within a relativistic approach: 1. The deuteron
| Authors | M. A. Braun, C. Ciofi degli Atti, L. P. Kaptari |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0303048 |
| URL | https://arxiv.org/abs/nucl-th/0303048 |
Abstract
The rescattering contribution to the inclusive and exclusive deuteron electro-disintegration at the values of the Bjorken scaling variable $x=1$, as well as in the so called {\it cumulative} region ($x>1$) is calculated within a relativistic approach based on the Feynman diagram formalism taking into account colour transparency effects by the inclusion of the {\it finite formation time} (FFT) of the ejected nucleon via the introduction of the dependence of the scattering amplitude of the ejectile upon its virtuality. In the cumulative region the FFT effects which result from the real part of the ejectile propagator are taken into account. It is found that the relative weight of the rescattering steadily grows with $x$ becoming of the order of unity at $x>1.4\div 1.5$. At such values of $x$ the finite formation time effects become fairly visible, which may serve for their study at relatively small value of the four-momentum transfer$Q^2$. The relativistic rescattering contribution is compared with the Glauber rescattering, which is shown to be not valid in the cumulative region starting from $x>1.4$.
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"abstract": "The rescattering contribution to the inclusive and exclusive deuteron\nelectro-disintegration at the values of the Bjorken scaling variable $x=1$, as\nwell as in the so called {\\it cumulative} region ($x\u003e1$) is calculated within a\nrelativistic approach based on the Feynman diagram formalism taking into\naccount colour transparency effects by the inclusion of the {\\it finite\nformation time} (FFT) of the ejected nucleon via the introduction of the\ndependence of the scattering amplitude of the ejectile upon its virtuality. In\nthe cumulative region the FFT effects which result from the real part of the\nejectile propagator are taken into account. It is found that the relative\nweight of the rescattering steadily grows with $x$ becoming of the order of\nunity at $x\u003e1.4\\div 1.5$. At such values of $x$ the finite formation time\neffects become fairly visible, which may serve for their study at relatively\nsmall value of the four-momentum transfer$Q^2$. The relativistic rescattering\ncontribution is compared with the Glauber rescattering, which is shown to be\nnot valid in the cumulative region starting from $x\u003e1.4$.",
"arxiv_id": "nucl-th/0303048",
"authors": [
"M. A. Braun",
"C. Ciofi degli Atti",
"L. P. Kaptari"
],
"categories": [
"nucl-th"
],
"title": "Rescattering and finite formation time effects in inclusive and exclusive electro-disintegration of nuclei within a relativistic approach: 1. The deuteron",
"url": "https://arxiv.org/abs/nucl-th/0303048"
},
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