The ideal mixing departure in vector meson physics
Dto. de Física, Fac. de Cs. Exactas, UNLP, C.C. 67, Instituto de Física La Plata CONICET, 1900, La Plata, Argentina
In this work we study the departure from the ideal $\phi$-$\omega$ mixing angle within the framework of the Nambu-Jona-Lasinio model. In this context we show that the flavor symmetry breaking is unable to produce the shifting of the ideal mixing. We found that a nonet symmetry breaking in the neutral vector sector is necessary to regulate the non-strange content of the $\phi$ meson. The phenomenology is well described by our proposal.
© Springer-Verlag, 2003