dorsal/arxiv
View SchemaTheoretical aspects of the CEBAF 89-009 experiment on inclusive scattering of 4.05 GeV electrons from nuclei
| Authors | A. S. Rinat, M. F. Taragin |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9904028 |
| URL | https://arxiv.org/abs/nucl-th/9904028 |
| DOI | 10.1103/PhysRevC.60.044601 |
| Journal | Phys.Rev. C60 (1999) 044601 |
Abstract
We compare recent CEBAF data on inclusive electron scattering on nuclei with predictions, based on a relation between structure functions (SF) of a nucleus, a nucleon and a nucleus of point-nucleons. The latter contains nuclear dynamics, e.g. binary collision contributions in addition to the asymptotic limit. The agreement with the data is good, except in low-intensity regions. Computed ternary collsion contributions appear too small for an explanation. We perform scaling analyses in Gurvitz's scaling variable and found that for $y_G\gtrless 0$, ratios of scaling functions for pairs of nuclei differ by less than 15-20% from 1. Scaling functions for $<y_G>0$ are, for increasing $Q^2$, shown to approach a plateau from above. We observe only weak $Q^2$-dependence in FSI, which in the relevant kinematic region is ascribed to the diffractive nature of the NN amplitudes appearing in FSI. This renders it difficult to separate asymptotic from FSI parts and seriously hampers the extraction of $n(p)$ from scaling analyses in a model-independnent fashion.
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"abstract": "We compare recent CEBAF data on inclusive electron scattering on nuclei with\npredictions, based on a relation between structure functions (SF) of a nucleus,\na nucleon and a nucleus of point-nucleons. The latter contains nuclear\ndynamics, e.g. binary collision contributions in addition to the asymptotic\nlimit. The agreement with the data is good, except in low-intensity regions.\nComputed ternary collsion contributions appear too small for an explanation. We\nperform scaling analyses in Gurvitz\u0027s scaling variable and found that for\n$y_G\\gtrless 0$, ratios of scaling functions for pairs of nuclei differ by less\nthan 15-20% from 1. Scaling functions for $\u003cy_G\u003e0$ are, for increasing $Q^2$,\nshown to approach a plateau from above. We observe only weak $Q^2$-dependence\nin FSI, which in the relevant kinematic region is ascribed to the diffractive\nnature of the NN amplitudes appearing in FSI. This renders it difficult to\nseparate asymptotic from FSI parts and seriously hampers the extraction of\n$n(p)$ from scaling analyses in a model-independnent fashion.",
"arxiv_id": "nucl-th/9904028",
"authors": [
"A. S. Rinat",
"M. F. Taragin"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.60.044601",
"journal_ref": "Phys.Rev. C60 (1999) 044601",
"title": "Theoretical aspects of the CEBAF 89-009 experiment on inclusive scattering of 4.05 GeV electrons from nuclei",
"url": "https://arxiv.org/abs/nucl-th/9904028"
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