dorsal/arxiv
View SchemaA Quantum-Mechanical Equivalent-Photon Spectrum for Heavy-Ion Physics
| Authors | C. J. Benesh, A. C. Hayes, J. L. Friar |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9604016 |
| URL | https://arxiv.org/abs/nucl-th/9604016 |
| DOI | 10.1103/PhysRevC.54.1404 |
| Journal | Phys.Rev.C54:1404-1413,1996 |
Abstract
In a previous paper, we calculated the fully quantum-mechanical cross section for electromagnetic excitation during peripheral heavy-ion collisions. Here, we examine the sensitivity of that cross section to the detailed structure of the projectile and target nuclei. At the transition energies relevant to nuclear physics, we find the cross section to be weakly dependent on the projectile charge radius, and to be sensitive to only the leading momentum-transfer dependence of the target transition form factors. We exploit these facts to derive a quantum-mechanical ``equivalent-photon spectrum'' valid in the long-wavelength limit. This improved spectrum includes the effects of projectile size, the finite longitudinal momentum transfer required by kinematics, and the response of the target nucleus to the off-shell photon.
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"abstract": "In a previous paper, we calculated the fully quantum-mechanical cross section\nfor electromagnetic excitation during peripheral heavy-ion collisions. Here, we\nexamine the sensitivity of that cross section to the detailed structure of the\nprojectile and target nuclei. At the transition energies relevant to nuclear\nphysics, we find the cross section to be weakly dependent on the projectile\ncharge radius, and to be sensitive to only the leading momentum-transfer\ndependence of the target transition form factors. We exploit these facts to\nderive a quantum-mechanical ``equivalent-photon spectrum\u0027\u0027 valid in the\nlong-wavelength limit. This improved spectrum includes the effects of\nprojectile size, the finite longitudinal momentum transfer required by\nkinematics, and the response of the target nucleus to the off-shell photon.",
"arxiv_id": "nucl-th/9604016",
"authors": [
"C. J. Benesh",
"A. C. Hayes",
"J. L. Friar"
],
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"nucl-th"
],
"doi": "10.1103/PhysRevC.54.1404",
"journal_ref": "Phys.Rev.C54:1404-1413,1996",
"title": "A Quantum-Mechanical Equivalent-Photon Spectrum for Heavy-Ion Physics",
"url": "https://arxiv.org/abs/nucl-th/9604016"
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