Calculations of ${\cal O}(p^6)$ Resonance Coupling Constants in the Scalar Sector of the ENJL Model

TL;DR

This paper derives scalar resonance coupling constants in resonance chiral theory from the ENJL model using heat-kernel expansion, providing a theoretical link between these frameworks.

Contribution

It introduces a method to calculate scalar resonance couplings in resonance chiral theory directly from the ENJL model.

Findings

Derived explicit formulas for scalar resonance couplings.

Established a connection between ENJL model and resonance chiral theory.

Provided a basis for future phenomenological applications.

Abstract

We derive the scalar resonance coupling constants of resonance chiral theory from the Extended Nambu Jona-Lasinio model by using heat-kernel expansion.