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arXiv · 0809.3717

The $\gamma \gamma$ decay of the $f_0(1370)$ and $f_2(1270)$ resonances in the hidden gauge formalism

H. Nagahiro·J. Yamagata-Sekihara·E. Oset·S. Hirenzaki·R. Molina
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Abstract

Using recent results obtained within the hidden gauge formalism for vector mesons, in which the $f_0(1370)$ and $f_2(1270)$ resonances are dynamically generated resonances from the $\rho \rho$ interaction, we evaluate the radiative decay of these resonances into $\gamma \gamma$. We obtain results for the width in good agreement with the experimental data for the $f_2(1270)$ state and a width about a factor five smaller for the $f_0(1370)$ resonance, which would agree with preliminary results from the Belle collaboration, hinting at an order of magnitude smaller width for this resonance than for the $f_2(1270)$.

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H. Nagahiro, J. Yamagata-Sekihara, E. Oset, S. Hirenzaki, R. Molina. 2008-09-22. The $\gamma \gamma$ decay of the $f_0(1370)$ and $f_2(1270)$ resonances in the hidden gauge formalism. https://doi.org/10.1103/physrevd.79.114023

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