Quadrupole polarizabilities of the pion in the Nambu--Jona-Lasinio model

Abstract

The electromagnetic dipole and quadrupole polarizabilities of the neutral and charged pions are calculated in the Nambu--Jona-Lasinio model. Our results agree with the recent experimental analysis of these quantities based on Dispersion Sum Rules. Comparison is made with the results from the Chiral Perturbation Theory.

arXiv comment9 pages, 1 fig

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Cited by in corpus (4)

• MO analysis of the high statistics Belle results on $\gamma \gamma \to {\pi }^{+}{\pi }^{-},{\pi }^0{\pi }^0$ with chiral constraints
• The Quark-Level Linear σ Model
• Dipole polarizabilities of light pseudoscalar mesons within the Domain Model of QCD vacuum
• Pion quadrupole polarizabilities in the Nambu--Jona-Lasinio model