4.7 Article

γγ decay of the f0(1370) and f2(1270) resonances in the hidden gauge formalism

期刊

PHYSICAL REVIEW D
卷 79, 期 11, 页码 -

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AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.79.114023

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资金

  1. DGICYT [FIS2006-03438]
  2. EU Integrated Infrastructure Initiative Hadron Physics [RII3-CT-2004-506078]
  3. Japan Society for the Promotion of Science [18-8661, 19-2831, C-20540273]
  4. Grants-in-Aid for Scientific Research [20540273] Funding Source: KAKEN

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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 2 smaller for the f(0)(1370) resonance, which is also in agreement with the data of the Crystal Ball Collaboration and with the more recent ones from the Belle Collaboration, which, however, have a very large uncertainty.

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