Summary
We suggest that the Higgs might be unobservable as a free particle, due to its origin at a symmetry-breaking mechanism. The standard model is kept intact, only the definition of the vacuum for the Higgs is changed. With the new (natural) definition, the Higgs propagator is half-advanced and half-retarded. This Green’s function is compatible with the absence of free particles.
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This work was partially supported by Comision de Investigaciones Cientificas, Pcia. de Buenos Aires; Argentina.
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Bollini, C.G., Rocca, M.C. Is the Higgs a visible particle?. Il Nuovo Cimento A (1971-1996) 110, 363–367 (1997). https://doi.org/10.1007/BF03035887
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DOI: https://doi.org/10.1007/BF03035887