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

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

2008-09-22

arxiv.org/abs/0809.3717v3

Phys.Rev.D79:114023,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 9 figures, proof of gauge invariance added

Scientific paper

10.1103/PhysRevD.79.114023

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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