The photon to pseudoscalar meson transition form factors

Details The photon to pseudoscalar meson transition form factors The photon to pseudoscalar meson transition form factors

2011-09-26

arxiv.org/abs/1109.5561v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 8 figures, using Latex, talk presented at the conference on Hadronic Structure, Tatranska Strba (2011)

Scientific paper

In this talk it is reported on an analysis of the form factors for the transitions from a photon to one of the pseudoscalar mesons pi0, eta, eta', etac within the modified perturbative approach in which quark transverse degrees of freedom are retained. The report is focused on the discussion of the surprising features the new BaBar data exhibit, namely the sharp rise of the pi-gamma form factor with the photon virtuality and the strong breaking of flavor symmetry in the sector of pseudoscalar mesons.

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