dorsal/arxiv
View SchemaThe $\phi$ meson width in the medium from proton induced $\phi$ production in nuclei
| Authors | V. K. Magas, L. Roca, E. Oset |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0403067 |
| URL | https://arxiv.org/abs/nucl-th/0403067 |
| DOI | 10.1103/PhysRevC.71.065202 |
| Journal | Phys.Rev. C71 (2005) 065202 |
Abstract
We perform calculations for the production of $\phi$ mesons in nuclei at energies just above threshold and study the $A$ dependence of the cross section. We use results for the $\phi$ selfenergy in the medium obtained within a chiral unitary approach. We find a strong $A$ dependence which is tied to the distortion of the incident proton and to the absorption of the $\phi$ in its way out of the nucleus. The effect of this latter process reduces the cross section in about a factor two in heavy nuclei proving that the $A$ dependence of the cross section bears valuable information on the $\phi$ width in the nuclear medium. Calculations are done for energies which are accessible in an experimental facility like COSY.
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"abstract": "We perform calculations for the production of $\\phi$ mesons in nuclei at\nenergies just above threshold and study the $A$ dependence of the cross\nsection. We use results for the $\\phi$ selfenergy in the medium obtained within\na chiral unitary approach. We find a strong $A$ dependence which is tied to the\ndistortion of the incident proton and to the absorption of the $\\phi$ in its\nway out of the nucleus. The effect of this latter process reduces the cross\nsection in about a factor two in heavy nuclei proving that the $A$ dependence\nof the cross section bears valuable information on the $\\phi$ width in the\nnuclear medium. Calculations are done for energies which are accessible in an\nexperimental facility like COSY.",
"arxiv_id": "nucl-th/0403067",
"authors": [
"V. K. Magas",
"L. Roca",
"E. Oset"
],
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],
"doi": "10.1103/PhysRevC.71.065202",
"journal_ref": "Phys.Rev. C71 (2005) 065202",
"title": "The $\\phi$ meson width in the medium from proton induced $\\phi$ production in nuclei",
"url": "https://arxiv.org/abs/nucl-th/0403067"
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