Publicação: Effective lagrangian for a mass dimension one fermionic field in curved spacetime
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Data
2018-02-01
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In this work we use momentum-space techniques to evaluate the propagator G(x, x′) for a spin 1/2 mass dimension one spinor field on a curved Friedmann-Robertson-Walker spacetime. As a consequence, we built the one-loop correction to the effective lagrangian in the coincidence limit. Going further we compute the effective lagrangian in the finite temperature regime. We arrive at interesting cosmological consequences, as time-dependent cosmological ‘constant’, fully explaining the functional form of previous cosmological models.
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Inglês
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Journal of High Energy Physics, v. 2018, n. 2, 2018.
