Effective Weak Chiral Lagrangian from the Instanton Vacuum

Abstract

We present in this talk the recent investigation of the effective weak chiral Lagrangian within the framework of the instanton-induced chiral quark model. The low energy constants in leading order $g_8$ and $g_{27}$, and their ratio are determined. The momentum-dependence of the constituent quark mass turns out to improve the low energy constants to the great extent, respecting the $\Delta T=1/2$ enhancement.

4 pages, espcrc1 is used. Talk given at PANIC `99, Uppsala Sweden, June 10, 1999

References in corpus (2)

• The Mesonic Chiral Lagrangian of Order $p^6$
• Effective Weak Chiral Lagrangian to $\mathcal{O}(p^4)$ in the Chiral Quark Model

Cited by in corpus (3)

• Effective chiral lagrangian in the chiral limit from the instanton vacuum
• Instantons and the $\Delta I=1/2$ Rule
• $\Delta S=0$ Effective Weak Chiral Lagrangian from the Instanton Vacuum