Electromagnetic transition form factors of light mesons
نویسندگان
چکیده
منابع مشابه
Photon-meson transition form factors of light pseudoscalar mesons
The photon-meson transition form factors of light pseudoscalar mesons π0, η, and η′ are systematically calculated in a light-cone framework, which is applicable as a light-cone quark model at low Q2 and is also physically in accordance with the light-cone pQCD approach at large Q2. The calculated results agree with the available experimental data at high energy scale. We also predict the low Q2...
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The charge and transition form factors of pion (Fπ, Fπγ , and Fπγ∗) are studied with the light-front quark model. We find that our results for Fπ and Fπγ agree very well with experimental data. Furthermore, the decay constants of η and η are evaluated. We also calculate Fηγ and Fη′γ and compare with the experimental data. PACS numbers: 12.39.Ki, 13.40.Gp Typeset using REVTEX
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Production of even C-parity hadronic matter in ee scattering provides a unique opportunity to study the properties of strong interactions. To leading order in quantum electrodynamics (QED) these processes are described as the interaction between two photons emitted by the scattered electrons. Although in ee scattering the probe and the target are both represented by photons that are carriers of...
متن کاملTransition form factors and light cone distribution amplitudes of pseudoscalar mesons in the chiral quark model
It is shown that a chiral quark model of the Nambu–Jona-Lasinio type can be used to describe ”soft”-momenta parts of the amplitudes with large momentum transfer. As a sample, the processes γ∗ → γ(π, η, η′) where one of the photons, γ∗, has large spacelike virtuality is investigated. The γ∗ → γ(π, η, η′) transition form factors are calculated for a wide region of transferred momenta. The results...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 2002
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.65.045211