dorsal/arxiv
View SchemaThe strangeness form factors of the proton
| Authors | D. O. Riska, B. S. Zou |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0512102 |
| URL | https://arxiv.org/abs/nucl-th/0512102 |
| DOI | 10.1016/j.physletb.2006.03.065 |
| Journal | Phys.Lett. B636 (2006) 265-269 |
Abstract
The present empirical information on the strangeness form factors indicates that the corresponding $uuds\bar s$ component in the proton is such that the $uuds$ subsystem has the flavor spin symmetry $[4]_{FS}[22]_F[22]_S$ and mixed orbital symmetry $[31]_X$. This $uuds\bar s$ configuration leads to the empirical signs of all the form factors $G_E^s$, $G_M^s$ and $G_A^s$. An analysis with simple quark model wave functions for the preferred configuration shows that the qualitative features of the empirical strangeness form factors may be described with a $\sim$ 15% admixture of $uuds\bar s$ with a compact wave function in the proton. Transition matrix elements between the $uud$ and the $uuds\bar s$ components give significant contributions.
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"abstract": "The present empirical information on the strangeness form factors indicates\nthat the corresponding $uuds\\bar s$ component in the proton is such that the\n$uuds$ subsystem has the flavor spin symmetry $[4]_{FS}[22]_F[22]_S$ and mixed\norbital symmetry $[31]_X$. This $uuds\\bar s$ configuration leads to the\nempirical signs of all the form factors $G_E^s$, $G_M^s$ and $G_A^s$. An\nanalysis with simple quark model wave functions for the preferred configuration\nshows that the qualitative features of the empirical strangeness form factors\nmay be described with a $\\sim$ 15% admixture of $uuds\\bar s$ with a compact\nwave function in the proton. Transition matrix elements between the $uud$ and\nthe $uuds\\bar s$ components give significant contributions.",
"arxiv_id": "nucl-th/0512102",
"authors": [
"D. O. Riska",
"B. S. Zou"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/j.physletb.2006.03.065",
"journal_ref": "Phys.Lett. B636 (2006) 265-269",
"title": "The strangeness form factors of the proton",
"url": "https://arxiv.org/abs/nucl-th/0512102"
},
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