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$\sigma$ Meson In $J/\Psi$ Decays
High Energy Physics - Phenomenology · Submitted 3 Dec 2001
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim The results show that the theoretical value of $g^{th}_{J/\Psi\sigma\omega}$ is within the range of experimental value $g_{J/\Psi\sigma\omega}$.
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The abstract, sentence by sentence
Recently BES at BEPC found evidence for the existence of the $\sigma$ meson in the process of $J/\Psi \to \sigma\omega \to\pi\pi\omega$. In this paper we firstly discuss the relevant coupling $g_{\sigma\pi\pi}$ and show that the linear $\sigma$ model gives rise to a reasonable description of the $\sigma$ decay into $\pi$'s, then we calculate the coupling constant $g^{th}_{J/\Psi\sigma\omega}$ by using the perturbative QCD technique and the light-cone wave functions of the $\sigma$ and $\omega$ mesons. The results show that the theoretical value of $g^{th}_{J/\Psi\sigma\omega}$ is within the range of experimental value $g_{J/\Psi\sigma\omega}$.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Recently BES at BEPC found evidence for the existence of the $\sigma$ meson in the process of $J/\Psi \to \sigma\omega \to\pi\pi\omega$. | background 0.99 | 0.06 | 0.15 | asserted 0.88 |
| s1 | In this paper we firstly discuss the relevant coupling $g_{\sigma\pi\pi}$ and show that the linear $\sigma$ model gives rise to a reasonable description of the $\sigma$ decay into $\pi$'s, then we calculate the coupling constant $g^{th}_{J/\Psi\sigma\omega}$ by using the perturbative QCD technique and the light-cone wave functions of the $\sigma$ and $\omega$ mesons. | method 0.50 | 0.93 | 0.07 | asserted 0.99 |
| s2 | The results show that the theoretical value of $g^{th}_{J/\Psi\sigma\omega}$ is within the range of experimental value $g_{J/\Psi\sigma\omega}$. | result 0.97 | 0.85 | 0.70 | asserted 1.00 |
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The paper
Original abstract
Recently BES at BEPC found evidence for the existence of the $\sigma$ meson in the process of $J/\Psi \to \sigma\omega \to\pi\pi\omega$. In this paper we firstly discuss the relevant coupling $g_{\sigma\pi\pi}$ and show that the linear $\sigma$ model gives rise to a reasonable description of the $\sigma$ decay into $\pi$'s, then we calculate the coupling constant $g^{th}_{J/\Psi\sigma\omega}$ by using the perturbative QCD technique and the light-cone wave functions of the $\sigma$ and $\omega$ mesons. The results show that the theoretical value of $g^{th}_{J/\Psi\sigma\omega}$ is within the range of experimental value $g_{J/\Psi\sigma\omega}$.
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How the literature uses it
1 arXiv paper cite this in 3 sentences
Papers citing it · 1 sentence without a confident label
Uses its data or values 1 paper
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The total $σ$ decay width was measured recently in two experiments [ref] .
Decay of a scalar $\sigma$-meson near the critical end-point in the PNJL model · Decay $σ→ππ$ · 0.80
Compares with it 1 paper
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It is of interest to note that the quark-meson models predict $g_σππ=$1.8 GeV [ref] and $1.8^+0.5_-0.3$ GeV [ref] , and the linear sigma model gives $g_σππ=2.54±$ 0.01 GeV [ref] .
Decay of a scalar $\sigma$-meson near the critical end-point in the PNJL model · Decay $σ→ππ$ · 0.99
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