dorsal/arxiv
View SchemaTest of Scalar Meson Structure in $\phi$ Radiative Decays
| Authors | S. Kumano |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9211008 |
| URL | https://arxiv.org/abs/nucl-th/9211008 |
Abstract
We show that $\phi$ radiative decays into scalar mesons [$f_0$(975), $a_0$(980)$\equiv S$] can provide important clues on the internal structures of these mesons. Radiative decay widths vary widely: $B.R.=10^{-4}-10^{-6}$ depending on the substructures ($q\bar q$, $qq\bar q\bar q$, $K\bar K$, glueball). Hence, we could discriminate among various models by measuring these widths at future $\phi$ factories. The understanding of these meson structures is valuable not only in hadron spectroscopy but also in nuclear physics in connection with the widely-used but little-understood $\sigma$ meson. We also find that the decay $\phi\rightarrow S\gamma \rightarrow K^0 \bar K^0\gamma$ is not strong enough to pose a significant background problem for studying CP violation via $\phi\rightarrow K^0 \bar K^0$ at the $\phi$ factories.
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"abstract": "We show that $\\phi$ radiative decays into scalar mesons [$f_0$(975),\n$a_0$(980)$\\equiv S$] can provide important clues on the internal structures of\nthese mesons. Radiative decay widths vary widely: $B.R.=10^{-4}-10^{-6}$\ndepending on the substructures ($q\\bar q$, $qq\\bar q\\bar q$, $K\\bar K$,\nglueball). Hence, we could discriminate among various models by measuring these\nwidths at future $\\phi$ factories. The understanding of these meson structures\nis valuable not only in hadron spectroscopy but also in nuclear physics in\nconnection with the widely-used but little-understood $\\sigma$ meson. We also\nfind that the decay $\\phi\\rightarrow S\\gamma \\rightarrow K^0 \\bar K^0\\gamma$ is\nnot strong enough to pose a significant background problem for studying CP\nviolation via $\\phi\\rightarrow K^0 \\bar K^0$ at the $\\phi$ factories.",
"arxiv_id": "nucl-th/9211008",
"authors": [
"S. Kumano"
],
"categories": [
"nucl-th",
"hep-ph"
],
"title": "Test of Scalar Meson Structure in $\\phi$ Radiative Decays",
"url": "https://arxiv.org/abs/nucl-th/9211008"
},
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