dorsal/arxiv
View SchemaNuclear Transparency to Intermediate-Energy Protons
| Authors | James J. Kelly |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9607001 |
| URL | https://arxiv.org/abs/nucl-th/9607001 |
| DOI | 10.1103/PhysRevC.54.2547 |
| Journal | Phys.Rev.C54:2547-2562,1996 |
Abstract
Nuclear transparency in the (e,e'p) reaction for 135 < Tp < 800 MeV is investigated using the distorted wave approximation. Calculations using density-dependent effective interactions are compared with phenomenological optical potentials. Nuclear transparency is well correlated with proton absorption and neutron total cross sections. For Tp < 300 MeV there is considerable sensitivity to the choice of optical model, with the empirical effective interaction providing the best agreement with transparency data. For Tp > 300 MeV there is much less difference between optical models, but the calculations substantially underpredict transparency data and the discrepancy increases with A. The differences between Glauber and optical model calculations are related to their respective definitions of the semi-inclusive cross section. By using a more inclusive summation over final states the Glauber model emphasizes nucleon-nucleon inelasticity, whereas with a more restrictive summation the optical model emphasizes nucleon-nucleus inelasticity; experimental definitions of the semi-inclusive cross section lie between these extremes.
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"abstract": "Nuclear transparency in the (e,e\u0027p) reaction for 135 \u003c Tp \u003c 800 MeV is\ninvestigated using the distorted wave approximation. Calculations using\ndensity-dependent effective interactions are compared with phenomenological\noptical potentials. Nuclear transparency is well correlated with proton\nabsorption and neutron total cross sections. For Tp \u003c 300 MeV there is\nconsiderable sensitivity to the choice of optical model, with the empirical\neffective interaction providing the best agreement with transparency data. For\nTp \u003e 300 MeV there is much less difference between optical models, but the\ncalculations substantially underpredict transparency data and the discrepancy\nincreases with A. The differences between Glauber and optical model\ncalculations are related to their respective definitions of the semi-inclusive\ncross section. By using a more inclusive summation over final states the\nGlauber model emphasizes nucleon-nucleon inelasticity, whereas with a more\nrestrictive summation the optical model emphasizes nucleon-nucleus\ninelasticity; experimental definitions of the semi-inclusive cross section lie\nbetween these extremes.",
"arxiv_id": "nucl-th/9607001",
"authors": [
"James J. Kelly"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.54.2547",
"journal_ref": "Phys.Rev.C54:2547-2562,1996",
"title": "Nuclear Transparency to Intermediate-Energy Protons",
"url": "https://arxiv.org/abs/nucl-th/9607001"
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