Applying the Fröhlich-Morchio-Strocchi mechanism to canonical quantum gravity shows that ordinary particles emerge as the leading-order part of diffeomorphism-invariant, gravitationally dressed operators when gravitational fluctuations are small.
Toward the spectrum of the SU(2) adjoint Higgs model
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abstract
Scalar particles in the adjoint representation of a non-Abelian gauge theory play an important role in many scenarios beyond the standard model, especially of GUT type. For such theories manifestly gauge-invariant, massless, composite vector particles have been predicted, even at weak coupling, using the Fr\"ohlich-Morchio-Strocchi mechanism. We use lattice gauge theory to investigate the simplest such theories, a single adjoint scalar coupled to an SU(2) Yang-Mills theory. The results support the existence of such a particle, in accordance with the prediction.
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The Fr\"ohlich-Morchio-Strocchi mechanism and quantum gravity
Applying the Fröhlich-Morchio-Strocchi mechanism to canonical quantum gravity shows that ordinary particles emerge as the leading-order part of diffeomorphism-invariant, gravitationally dressed operators when gravitational fluctuations are small.