dorsal/arxiv
View SchemaThe inclusive transverse response of nuclear matter
| Authors | A. Fabrocini |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9609027 |
| URL | https://arxiv.org/abs/nucl-th/9609027 |
| DOI | 10.1103/PhysRevC.55.338 |
| Journal | Phys.Rev.C55:338-348,1997 |
Abstract
The electromagnetic inclusive transverse response of nuclear matter at saturation density is studied within the correlated basis function perturbation theory for momentum transfers q from 300 to 550 MeV/c. The correlation operator includes a Jastrow component, accounting for the short range repulsion, as well as longer range spin, tensor and isospin ones. The Schiavilla- Pandharipande-Riska model for the two-body electromagnetic currents, satisfying the continuity equation with realistic v_14 potentials, is adopted. Currents due to intermediate Delta-isobar excitations, are also included. The global contribution of the two-body currents turns out to be positive and provides an enhancement of the one-body transverse response ranging from about 20% for the lower momenta to about 10% for the higher ones. This finding is in agreement with the Green's Function Monte Carlo studies of the transverse Euclidean response in A=3,4 nuclei and contradicts previous results obtained within the Fermi gas and shell models. The tensor-isospin component of the correlation is found to be the leading responsible for such a behavior. The nuclear matter response is compared to recent experimental data on 40Ca and 56Fe.
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"abstract": "The electromagnetic inclusive transverse response of nuclear matter at\nsaturation density is studied within the correlated basis function perturbation\ntheory for momentum transfers q from 300 to 550 MeV/c. The correlation operator\nincludes a Jastrow component, accounting for the short range repulsion, as well\nas longer range spin, tensor and isospin ones. The Schiavilla-\nPandharipande-Riska model for the two-body electromagnetic currents, satisfying\nthe continuity equation with realistic v_14 potentials, is adopted. Currents\ndue to intermediate Delta-isobar excitations, are also included. The global\ncontribution of the two-body currents turns out to be positive and provides an\nenhancement of the one-body transverse response ranging from about 20% for the\nlower momenta to about 10% for the higher ones. This finding is in agreement\nwith the Green\u0027s Function Monte Carlo studies of the transverse Euclidean\nresponse in A=3,4 nuclei and contradicts previous results obtained within the\nFermi gas and shell models. The tensor-isospin component of the correlation is\nfound to be the leading responsible for such a behavior. The nuclear matter\nresponse is compared to recent experimental data on 40Ca and 56Fe.",
"arxiv_id": "nucl-th/9609027",
"authors": [
"A. Fabrocini"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.55.338",
"journal_ref": "Phys.Rev.C55:338-348,1997",
"title": "The inclusive transverse response of nuclear matter",
"url": "https://arxiv.org/abs/nucl-th/9609027"
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