dorsal/arxiv
View SchemaStrange Mesonic Transition Form Factor in the Chiral Constituent Quark Model
| Authors | Hiroshi Ito, M. J. Ramsey-Musolf |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9709053 |
| URL | https://arxiv.org/abs/nucl-th/9709053 |
| DOI | 10.1103/PhysRevC.58.2595 |
| Journal | Phys.Rev.C58:2595-2598,1998 |
Abstract
The form factor $g_{\rho \pi}^{(S)}(Q^{2})$ of the strange vector current transition matrix element $<\rho| \bar{s}\gamma_\mus|\pi>$ is calculated within the chiral quark model. A strange vector current of the constituent $U$- and D-quarks is induced by kaon radiative corrections and this mechanism yields the nonvanishing values of $g_{\rho\pi}^{(S)}(0)$. The numerical result at the photon point is consistent with the one given by the $\phi $-meson dominance model, but the fall-off in the $Q^{2}$-dependence is faster than the monopole form factor. Mesonic radiative corrections are also examined for the electromagnetic $\rho $-to-$\pi $ and $K^{*}$-to-$K$ transition amplitudes.
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"abstract": "The form factor $g_{\\rho \\pi}^{(S)}(Q^{2})$ of the strange vector current\ntransition matrix element $\u003c\\rho| \\bar{s}\\gamma_\\mus|\\pi\u003e$ is calculated within\nthe chiral quark model. A strange vector current of the constituent $U$- and\nD-quarks is induced by kaon radiative corrections and this mechanism yields the\nnonvanishing values of $g_{\\rho\\pi}^{(S)}(0)$. The numerical result at the\nphoton point is consistent with the one given by the $\\phi $-meson dominance\nmodel, but the fall-off in the $Q^{2}$-dependence is faster than the monopole\nform factor. Mesonic radiative corrections are also examined for the\nelectromagnetic $\\rho $-to-$\\pi $ and $K^{*}$-to-$K$ transition amplitudes.",
"arxiv_id": "nucl-th/9709053",
"authors": [
"Hiroshi Ito",
"M. J. Ramsey-Musolf"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1103/PhysRevC.58.2595",
"journal_ref": "Phys.Rev.C58:2595-2598,1998",
"title": "Strange Mesonic Transition Form Factor in the Chiral Constituent Quark Model",
"url": "https://arxiv.org/abs/nucl-th/9709053"
},
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