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

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arxiv 1709.08707 v2 pith:DT5Y4CU4 submitted 2017-09-25 hep-th

R. J. Bueno Rogerio , J. M. Hoff da Silva , M. Dias , S. H. Pereira This is my paper · ORCID
classification hep-th
keywords cosmologicaleffectivelagrangiancurveddimensionfieldmassspacetime
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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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Cited by 1 Pith paper

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  1. Wigner multiplets in QFT: dark sector and CPT-violating scenarios

    hep-ph 2025-02 reject novelty 6.0 of 10

    The paper builds a local QFT for two-fold Wigner-degenerate spin-1/2 doublets and claims generic interactions violate CPT, but a standard diagonal CPT operator restores the symmetry for its own example.

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