• Corpus ID: 238583733

Structure of Chern-Simons Scattering Amplitudes from Topological Equivalence Theorem and Double-Copy

  title={Structure of Chern-Simons Scattering Amplitudes from Topological Equivalence Theorem and Double-Copy},
  author={Y Hang and Hong-jian He and Cong Shen},
We study the mechanism of topological mass-generation for 3d Chern-Simons (CS) gauge theories, where the CS term can retain the gauge symmetry and make gauge boson topologically massive. Without CS term the 3d massless gauge boson has a single physical transverse polarization state, while adding the CS term converts it into a massive physical polarization state and conserves the total physical degrees of freedom. We newly formulate the mechanism of topological mass-generation at S-matrix level… 

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