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Investigations on the Property of $f_0(600)$ and $f_0(980)$ Resonances in $\gamma\gamma\to \pi\pi$ Process
High Energy Physics - Phenomenology · Submitted 2 Oct 2009
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Especially we study the physical meaning of the coupling constant $g^2_{\sigma\pi\pi}$, which maintains a negative real part as determined through dispersive analyses.
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The abstract, sentence by sentence
Using dispersion relation technique and experimental data, a coupled channel analysis on $\gamma\gamma\to\pi\pi$ process is made. Di-photon coupling of $f_0(600)$ and $f_0(980)$ resonances are extracted and their dynamical properties are discussed. Especially we study the physical meaning of the coupling constant $g^2_{\sigma\pi\pi}$, which maintains a negative real part as determined through dispersive analyses.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Using dispersion relation technique and experimental data, a coupled channel analysis on $\gamma\gamma\to\pi\pi$ process is made. | method 0.88 | 0.92 | 0.06 | asserted 0.98 |
| s1 | Di-photon coupling of $f_0(600)$ and $f_0(980)$ resonances are extracted and their dynamical properties are discussed. | contribution 0.50 | 0.92 | 0.30 | asserted 1.00 |
| s2 | Especially we study the physical meaning of the coupling constant $g^2_{\sigma\pi\pi}$, which maintains a negative real part as determined through dispersive analyses. | result 0.78 | 0.81 | 0.47 | asserted 1.00 |
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The paper
Original abstract
Using dispersion relation technique and experimental data, a coupled channel analysis on $\gamma\gamma\to\pi\pi$ process is made. Di-photon coupling of $f_0(600)$ and $f_0(980)$ resonances are extracted and their dynamical properties are discussed. Especially we study the physical meaning of the coupling constant $g^2_{\sigma\pi\pi}$, which maintains a negative real part as determined through dispersive analyses.
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