Pion and kaon electromagnetic form factors in a SUL(3) circle times SUR(3)effective Lagrangian

Authors
Shin, YC Han, BS Cheoun, MK Kim, KS Cheon, IT
Citation
Yc. Shin et al., Pion and kaon electromagnetic form factors in a SUL(3) circle times SUR(3)effective Lagrangian, EUR PHY J A, 9(2), 2000, pp. 269-276
Citations number
19
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL A
ISSN journal
14346001 → ACNP
Volume
9
Issue
2
Year of publication
2000
Pages
269 - 276
Database
ISI
SICI code
1434-6001(200010)9:2<269:PAKEFF>2.0.ZU;2-Y
Abstract
A SU(2) effective Lagrangian is extended to a SUL(3) x SUR(3) by including the vector and axial vector meson. With this effective Lagrangian, electrom agnetic form factors of charged pion and kaon are calculated in both time- and space-like regions. The pseudoscalar meson loops are taken into account . Good agreement with experimental data is obtained for those form factors and charged pseudoscalar meson radii. Decay widths of rho --> pi pi and phi --> K+K- are also calculated and shown to agree with experimental data ver y well.