On Wigner Degeneracy in Elko theory: Hermiticity and Dark Matter

Abstract

In this paper, we provide a set of Hermitian interactions for quantum fields based on Elko, considering the recent achievements concerning the most general form of singular spinors and Wigner degeneracy. We consider Hermiticity and renormalizability a criterion to define the derivative Elko-Higgs interaction as the suitable candidate for a dark coupling. Then, the free parameters of the model are fixed by cosmological constraints on the dark matter abundance, bounds on the Higgs invisible decays, and limits on the electron-dark matter scattering mediated by the Higgs.

16 pages, 2 figures

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Cited by in corpus (6)

• Wigner multiplets in QFT: from Wigner degeneracy to Elko fields
• Second-order pseudo-Hermitian spin-$1/2$ bosons
• Hermitian formulation for mass dimension one fermions: Flat and curved space-times
• A Covariant Framework for Generalized Spinor Dual Structures
• Bosonic Spin-1 SOPHY
• Unraveling the Physical Meaning Behind Elko's Dual structure