Summary
We exploit the geometric properties of the background field method to formulate a gauge-covariant computation of the glueball mass in pure Yang-Mills. To see how the plan works we carry it out from first principles in an “infinite spin” limit.
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Majid, S. Gauge-covariant vacuum expectations and glueballs. Nuov Cim A 104, 949–960 (1991). https://doi.org/10.1007/BF02813352
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DOI: https://doi.org/10.1007/BF02813352