$\omega NN$ vertex function and the $\gamma\pi\pi\pi$ anomaly
نویسندگان
چکیده
منابع مشابه
0 v 1 3 A ug 1 99 8 Axial anomaly induced suppression of the η ′ NN vertex
In an effective theory containing only quark degrees of freedom, such as the extended Nambu–Jona–Lasinio model, the influence of the axial anomaly can be incorporated by a self-interaction of the 't Hooft determinant type. I will show that this leads to a significant suppression of the η ′ coupling g η ′ qq to dynamical quarks which suggests a suppression of the η ′ NN vertex as compared to the...
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ژورنال
عنوان ژورنال: Zeitschrift f�r Physik C Particles and Fields
سال: 1997
ISSN: 0170-9739,1431-5858
DOI: 10.1007/s002880050518