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- Title
Transition Form Factors and Light-Cone Distribution Amplitudes of Pseudoscalar Mesons in the Chiral Quark Model.
- Authors
Dorokhov, A. E.; Volkov, M. K.; Yudichev, V. L.
- Abstract
It is shown that a chiral quark model of the Nambu-Jona-Lasinio type can be used to describe "soft"-momentum parts of the amplitudes with large momentum transfer. As a sample, the processes γ[SUP*]→γ(π,η,η′), where one of the photons, γ[SUP*], has large spacelike virtuality, are investigated. The γ[SUP*] → γ(π,η,η′ transition form factors are calculated for a wide region of the momentum transfer. The results are consistent with the calculations performed in the instanton-induced chiral quark model and agree with experimental data. The distribution amplitudes of pseudoscalar mesons are derived.
- Subjects
QUARK models; MESONS
- Publication
Physics of Atomic Nuclei, 2003, Vol 66, Issue 5, p941
- ISSN
1063-7788
- Publication type
Article
- DOI
10.1134/1.1577916