Anomalous Magnetic Moment of the Muon in a Composite Model

TL;DR

This paper reevaluates the muon's anomalous magnetic moment within a preonic composite model, demonstrating that the observed experimental deviation can be explained by new particles and interactions consistent with existing constraints.

Contribution

It provides a novel analysis of (g-2) in a preonic model with colored vectorlike leptons and heavy Z bosons, aligning theoretical predictions with recent experimental results.

Findings

The model can account for the muon (g-2) deviation.

Masses and couplings are consistent with current constraints.

Supports the viability of composite models for explaining anomalies.

Abstract

We make a fresh evaluation of contributions to (g-2) of the muon in the framework of a preonic model with coloured vectorlike leptons and heavy coloured Z bosons and discuss their implications in the light of the recent Brookhaven measurement. It is shown that the observed deviation can be explained within this framework with masses and couplings consistent with all constraints.