Effective lagrangian for a mass dimension one fermionic field in curved spacetime
Data
2018
Autores
Dias, M. 
Tipo
Artigo
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Resumo
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.
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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Citação
Journal Of High Energy Physics. New York, v. , n. 2, p. -, 2018.