Summary
A massive Yang-Mills field theory with conformal invariance and gauge invariance is proposed. It involves gravitational and various gauge interactions, in which all the mass terms appear as a uniform form of interactionm(x)=KΦ(x). When the conformal symmetry is broken spontaneously and the gravitation is ignored the Higgs field emerges naturally, where the imaginary massμ can be described as a background curvature.
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Zhao, SC., Yishi, D. Conformal (Weyl) invariance and Higgs mechanism. Nuov Cim A 105, 1739–1743 (1992). https://doi.org/10.1007/BF02740923
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DOI: https://doi.org/10.1007/BF02740923