dorsal/arxiv
View SchemaRelativistic y-scaling and the Coulomb sum rule in nuclei
| Authors | M. B. Barbaro, R. Cenni, A. De Pace, T. W. Donnelly, A. Molinari |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9804054 |
| URL | https://arxiv.org/abs/nucl-th/9804054 |
| DOI | 10.1016/S0375-9474(98)00443-6 |
| Journal | Nucl.Phys. A643 (1998) 137-160 |
Abstract
In this paper dividing factors GL and GT are constructed for the longitudinal and transverse responses of the relativistic Fermi gas in such a way that the reduced responses so obtained scale. These factors parallel another dividing factor studied previously, HL, that yields a (different) reduced response which fulfills the Coulomb sum rule. GL, GT and HL are all found to be only very weakly model-dependent, thus providing essentially universal dividing factors. To explore the residual degree of dependence which remains, the scaling and sum rule properties of several specific models have been considered. It is seen that the relativistic Fermi gas (by construction) and also typical shell-model reduced responses successfully scale and satisfy the Coulomb sum rule, as do experimental results at medium to high momentum transfers. On the other hand, it is observed that the quantum hadrodynamic model does so only if interaction effects become weaker with increasing momentum transfer, as predicted in the most recent versions of that model.
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"abstract": "In this paper dividing factors GL and GT are constructed for the longitudinal\nand transverse responses of the relativistic Fermi gas in such a way that the\nreduced responses so obtained scale. These factors parallel another dividing\nfactor studied previously, HL, that yields a (different) reduced response which\nfulfills the Coulomb sum rule. GL, GT and HL are all found to be only very\nweakly model-dependent, thus providing essentially universal dividing factors.\nTo explore the residual degree of dependence which remains, the scaling and sum\nrule properties of several specific models have been considered. It is seen\nthat the relativistic Fermi gas (by construction) and also typical shell-model\nreduced responses successfully scale and satisfy the Coulomb sum rule, as do\nexperimental results at medium to high momentum transfers. On the other hand,\nit is observed that the quantum hadrodynamic model does so only if interaction\neffects become weaker with increasing momentum transfer, as predicted in the\nmost recent versions of that model.",
"arxiv_id": "nucl-th/9804054",
"authors": [
"M. B. Barbaro",
"R. Cenni",
"A. De Pace",
"T. W. Donnelly",
"A. Molinari"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/S0375-9474(98)00443-6",
"journal_ref": "Nucl.Phys. A643 (1998) 137-160",
"title": "Relativistic y-scaling and the Coulomb sum rule in nuclei",
"url": "https://arxiv.org/abs/nucl-th/9804054"
},
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