Pion radii in nonlocal chiral quark model

Details Pion radii in nonlocal chiral quark model Pion radii in nonlocal chiral quark model

2003-11-27

arxiv.org/abs/hep-ph/0311359v2

Eur.Phys.J. A21 (2004) 155-159

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 7 figures

Scientific paper

10.1140/epja/i2003-10177-0

The electromagnetic radius of the charged pion and the transition radius of the neutral pion are calculated in the framework of the nonlocal chiral quark model. It is shown in this model that the contributions of vector mesons to the pion radii are noticeably suppressed in comparison with a similar contribution in the local Nambu--Jona-Lasinio model. The form-factor for the process gamma*pi+pi- is calculated for the -1 GeV^2

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