Effective $ΔS=1$ weak chiral Lagrangian from the instanton-induced chiral quark model

Details Effective $ΔS=1$ weak chiral Lagrangian from the instanton-induced chiral quark model Effective $ΔS=1$ weak chiral Lagrangian from the instanton-induced chiral quark model

1998-12-30

arxiv.org/abs/hep-ph/9812524v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at the 1998 YITP Workshop on QCD and Hadron Physics, 14-16 October, Kyoto, Japan. 5 pages with 1 figure

Scientific paper

We present the recent investigation of the $\Delta S = 1$ effective weak chiral Lagrangian within the framework of the instanton-induced chiral quark model. Starting from the effective four-quark operators, we derive the effective weak chiral action by integrating out the constituent quark fields. Employing the derivative expansion, we obtain the effective weak chiral Lagrangian to ${\cal O} (p^4)$ order with low energy constants.

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