Radiative decays of pseudoscalar P and vector V mesons and the process e+e- → PV

被引:1
|
作者
Bystritskiy, Yu. M. [1 ]
Kuraev, E. A. [1 ]
Volkov, M. K. [1 ]
机构
[1] Joint Inst Nucl Res, Dubna, Russia
关键词
D O I
10.1016/j.nuclphysbps.2008.09.038
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
Radiative decays Of pseudoscalar and vector mesons are calculated in frames of chiral Nambu-Jona-Lasinio (NJL) model. We use triangle quark loops of anomalous type. During the evaluation of this loop integrals we used two methods. In first, one we neglect the dependence of external momenta. In that case we reproduce the Wess-Zumino-Witten terms of effective chiral meson lagrangian. In the second method we take into account the momenta dependence of loop integrals emitting their imaginary part. That lets us to take into account quark confinement. The application of both methods are in qualitative agreement with each other and with experimental data. Second method allows us to describe the electron-positron annihilation with production pseudoscalar and vector mesons in center of mass energy range from 1. to 5 GeV. The comparison with the recent experimental
引用
收藏
页码:210 / 214
页数:5
相关论文
共 50 条