Low-Energy Interactions of Mesons with Participation of the First Radially Excited States in U(3) × U(3) NJL Model
Volkov M.K. Pivovarov A.A. Nurlan K.
February 2022MDPI
Symmetry
2022#14Issue 2
The U(3) × U(3) chiral symmetric NJL model describing pseudoscalar, vector, and axial-vector mesons in both the ground state and first radially excited states is shortly presented in this review. In this model, it is possible to describe a large number of low-energy interactions of mesons, τ lepton decays into mesons, and processes of meson production in electron–positron annihilations in satisfactory agreement with the experiments. In describing a number of processes, it turned out to be necessary to take into account the interactions of mesons in the final state.
Chiral Lagrangians , Hadron production in e+ e− interactions , Radial excited mesons , τ lepton decays
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Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, 141980, Russian Federation
Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
Faculty of Physics and Technology, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Bogoliubov Laboratory of Theoretical Physics
Institute of Nuclear Physics
Faculty of Physics and Technology
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