Electromagnetic self-energies of vector mesons and electromagnetic mass anomaly of the massive Yang-Mills particles

TL;DR

This paper extends a systematic method to calculate electromagnetic self-energies of vector mesons, successfully matching experimental mass differences and discussing an electromagnetic mass anomaly without introducing new parameters.

Contribution

The authors develop an extended method for calculating electromagnetic self-energies of vector mesons, including the $ ho$, $ ho^ ext{pm}$, $ ho^0$, $ ho^ ext{pm}$, and $ ho^ ext{pm}$-mesons, and analyze the electromagnetic mass anomaly in massive Yang-Mills particles.

Findings

The theoretical $ ho^0- ho^ ext{pm}$ mass difference agrees with experimental data.

The study reveals an electromagnetic mass anomaly in massive Yang-Mills particles.

No new parameters are introduced in the calculations.

Abstract

A systematic method developed by the authors to evaluate the one-loop electromagnetic self-energies of the low-lying mesons is extended to the calculation of the vector sector including $\rho$, $\omega$, and $\phi$-mesons. The theoretical result of $\rho^0-\rho^\pm$ electromagnetic mass difference is in agreement with the measurements. An interesting effect called as electromagnetic mass anomaly of the massive Yang-Mills particles is further discussed. There is no new parameter in this study.