Questing mass dimension 1 spinor fields C. H. Coronado Villalobos, J. M. Hoff da Silva and Roldão da Rocha Eur. Phys. J. C, 75 6 (2015) 266 Published online: 18 June 2015 DOI: 10.1140/epjc/s10052-015-3498-2