dorsal/arxiv
View SchemaPions in isospin asymmetric matter and nuclear Drell-Yan scattering
| Authors | C. L. Korpa, A. E. L. Dieperink |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9812003 |
| URL | https://arxiv.org/abs/nucl-th/9812003 |
| DOI | 10.1016/S0370-2693(98)01521-4 |
| Journal | Phys.Lett. B446 (1999) 15-21 |
Abstract
Using a self-consistent delta-hole model the pion propagation in isospin asymmetric nuclear matter is studied. In neutron-rich matter, corresponding to heavy nuclei, a significant difference in positive and negative pion light-cone distributions is obtained leading to a nuclear enhancement of up antiquark distribution compared to the down antiquark one. This means that the sea-quark asymmetry in the free nucleon cannot be extracted model independently from an experiment on a neutron-rich nucleus.
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"abstract": "Using a self-consistent delta-hole model the pion propagation in isospin\nasymmetric nuclear matter is studied. In neutron-rich matter, corresponding to\nheavy nuclei, a significant difference in positive and negative pion light-cone\ndistributions is obtained leading to a nuclear enhancement of up antiquark\ndistribution compared to the down antiquark one. This means that the sea-quark\nasymmetry in the free nucleon cannot be extracted model independently from an\nexperiment on a neutron-rich nucleus.",
"arxiv_id": "nucl-th/9812003",
"authors": [
"C. L. Korpa",
"A. E. L. Dieperink"
],
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],
"doi": "10.1016/S0370-2693(98)01521-4",
"journal_ref": "Phys.Lett. B446 (1999) 15-21",
"title": "Pions in isospin asymmetric matter and nuclear Drell-Yan scattering",
"url": "https://arxiv.org/abs/nucl-th/9812003"
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