Experimental Tests on Yang-Mills Gravity with Accurate Measurements of the Deflection of Light

TL;DR

This paper tests Yang-Mills gravity's prediction for light deflection by the sun, finding results consistent with experimental measurements and highlighting a slight deviation from conventional theory.

Contribution

It provides experimental validation of Yang-Mills gravity's light deflection prediction, which differs slightly from Einstein's general relativity.

Findings

Measured light deflection of approximately 1.53 arcseconds

Results align with Yang-Mills gravity predictions within experimental error

Supports the viability of Yang-Mills gravity as an alternative theory

Abstract

In the geometric-optics limit, Yang-Mills gravity with space-time translational gauge symmetry predicts $\D \phi =7Gm/(2R) \approx 1.53''$ for the deflection of a light ray by the sun. The result, which is about 12% smaller than that in the conventional theory, is consistent with experiments involving optical frequencies that had an accuracy of 10-20%.