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

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

2009-08-02

arxiv.org/abs/0908.0159v1

Phys.Lett.B681:147-150,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 1 fig

Scientific paper

10.1016/j.physletb.2009.10.018

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.

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