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arXiv · 1709.08707

Effective lagrangian for a mass dimension one fermionic field in curved spacetime

R. J. Bueno Rogerio·J. M. Hoff da Silva·M. Dias·S. H. Pereira
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Abstract

In this work we use momentum-space techniques to evaluate the propagator $G(x,x^{\prime})$ 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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R. J. Bueno Rogerio, J. M. Hoff da Silva, M. Dias, S. H. Pereira. 2018-02-26. Effective lagrangian for a mass dimension one fermionic field in curved spacetime. https://doi.org/10.1007/jhep02(2018)145

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