The structure of the exact effective action and the quark confinement in MSSM QCD

TL;DR

This paper proposes a nonperturbative effective action for N=1 supersymmetric gauge theories, showing that instanton effects can cause quark confinement, with a confinement scale matching experimental data, offering an alternative to the dual Higgs mechanism.

Contribution

It introduces a new expression for the exact effective action in supersymmetric gauge theories, linking instanton effects to quark confinement from first principles.

Findings

Instanton effects can induce quark confinement in MSSM QCD.

The calculated confinement scale aligns with experimental observations.

The proposed mechanism differs from the dual Higgs explanation.

Abstract

An expression for the exact (nonperturbative) effective action of $N$=1 supersymmetric gauge theories is proposed, supposing, that all particles except for the gauge bosons are massive. Analysis of its form shows, that instanton effects in the supersymmetric theories can lead to the quark confinement. The typical scale of confinement in MSSM QCD, calculated from the first principles, is in agreement with the experimental data. The proposed explanation is quite different from the dual Higgs mechanism.