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Related papers: From Dirac spinor fields to ELKO

200 papers

Generalized Dirac equation with operator mass term is presented. Its solutions are non standard (ELKO) spinors which are eigenvectors of the charge conjugation and dual helicity operators. It is demonstrated that in spite of their non…

Mathematical Physics · Physics 2015-06-19 A. G. Nikitin

The Lounesto spinor classification is an important tool in fundamental physics, because it makes explicit the pleiade of spinors types, beyond the used in quantum field theory (QFT). In this work, we show how the classification emerges in…

Mathematical Physics · Physics 2017-03-13 J. A. Silva Neto

In this report we advance into a mapping procedure transmuting a single helicity spinor to a dual helicity spinor. Such a mathematical mechanism reveal us a class of spinor which fits into fourth class within Lounesto classification. The…

High Energy Physics - Theory · Physics 2019-09-09 R. J. Bueno Rogerio , C. H. Coronado Villalobos

In this communication we briefly report an unexpected theoretical discovery which emerge from the mapping of Elko mass-dimension-one spinors into single helicity spinors. Such procedure unveils a class of spinor which is classified as…

High Energy Physics - Theory · Physics 2019-04-09 C. H. Coronado Villalobos , R. J. Bueno Rogerio , E. F. T. São Sabbas

In this paper, the recently-introduced ELKO and the well-known Dirac spinor fields will be compared; however, instead of comparing them under the point of view of their algebraic properties or their dynamical features, we will proceed by…

General Relativity and Quantum Cosmology · Physics 2014-09-12 Luca Fabbri , Stefano Vignolo

A spinor fields classification with non-Abelian gauge symmetries is introduced, generalizing the the U(1) gauge symmetries-based Lounesto's classification. Here, a more general classification, contrary to the Lounesto's one, encompasses…

High Energy Physics - Theory · Physics 2018-03-28 Luca Fabbri , Roldao da Rocha

Recently, a new spin-1/2 fermionic quantum field with mass dimension one in four dimensions--Elko field $\lambda$ was introduced as a candidate of dark matter. In this paper, we investigate the localization of 5D Elko {spinors} on Minkowski…

High Energy Physics - Theory · Physics 2012-10-16 Yu-Xiao Liu , Xiang-Nan Zhou , Ke Yang , Feng-Wei Chen

Exotic dark spinor fields are introduced and investigated in the context of inequivalent spin structures on arbitrary curved spacetimes, which induces an additional term on the associated Dirac operator, related to a Cech cohomology class.…

High Energy Physics - Theory · Physics 2011-05-13 Roldao da Rocha , Alex E. Bernardini , J. M. Hoff da Silva

In this paper a mass dimension one fermionic sigma model, realized by the eigenspinors of the charge conjugation operator with dual helicity (Elko spinors), is developed. Such spinors are chosen as a specific realization of mass dimension…

High Energy Physics - Theory · Physics 2016-04-06 R. J. Bueno Rogerio , J. M. Hoff da Silva , S. H. Pereira , Roldao da Rocha

In this paper, we perform the polar analysis of the spinorial fields, starting from the regular cases and up to the singular cases: we will give for the first time the polar form of the spinorial field equations for the singular cases…

General Physics · Physics 2020-09-24 Luca Fabbri , Rodolfo José Bueno Rogerio

Mass dimension one quantum fields, constructed upon eigenspinors of the charge conjugation operator with dual helicity (ELKO), are prime candidates to describe dark matter. Their interaction with the photon and the proton, in scattering…

High Energy Physics - Theory · Physics 2022-06-27 G. B. de Gracia , R. da Rocha

A classification of spinor fields according to the associated bilinear covariants is constructed in arbitrary dimensions and metric signatures, generalizing Lounesto's 4D spinor field classification. In such a generalized classification a…

High Energy Physics - Theory · Physics 2015-02-17 L. Bonora , K. P. S. de Brito , Roldao da Rocha

From the 16-component Dirac-K\"{a}hler field theory, spinor equations for two types of massless vector photon fields with different parities have been derived. Their equivalent tensor equations in terms of the strength tensor $F_{ab}$ and…

Mathematical Physics · Physics 2008-08-06 V. M. Red'kov

Under a rotation by an angle $\vartheta$, both the right- and left- handed Weyl spinors pick up a phase factor ${\exp(\pm\, i \vartheta/2)}$. The upper sign holds for the positive helicity spinors, while the lower sign for the negative…

High Energy Physics - Theory · Physics 2019-03-13 Dharam Vir Ahluwalia , Sweta Sarmah

In the present essay we review the underlying physical information behind the first concrete example describing a mass dimension one fermion - namely Elko spinors. We start the program exploring the physical information by evaluating the…

High Energy Physics - Theory · Physics 2019-11-22 R. J. Bueno Rogerio , C. H. Coronado Villalobos , D. Beghetto , A. R. Aguirre

In this paper we approach the issue of Clifford algebra basis deformation, allowing for bilinear covariants associated to Elko spinors which satisfy the Fierz-Pauli-Kofink identities. We present a complete analysis of covariance, taking…

High Energy Physics - Theory · Physics 2016-11-11 J. M. Hoff da Silva , C. H. Coronado Villalobos , R. J. Bueno Rogerio , E. Scatena

The aim of this work is to explore the possibility to discover a fermionic field with mass dimension one, the Elko field, in the Large Hadron Collider (LHC). Due to its mass dimension, an Elko can only interact either with Standard Model…

High Energy Physics - Phenomenology · Physics 2015-06-18 Alexandre Alves , Fernando de Campos , Marco Dias , Julio M. Hoff da Silva

In this paper we consider the most general least-order derivative theory of gravity in which not only curvature but also torsion is explicitly present in the Lagrangian, and where all independent fields have their own coupling constant: we…

General Relativity and Quantum Cosmology · Physics 2013-04-25 Luca Fabbri , Stefano Vignolo

An intrinsic mass generation mechanism for exotic ELKO dark matter fields is scrutinized, in the context of the very special relativity (VSR). Our results are reported on unraveling inequivalent spin structures that educe an additional term…

High Energy Physics - Theory · Physics 2012-10-08 Alex E. Bernardini , Roldao da Rocha

Classification of quantum spinor fields according to quantum bilinear covariants is introduced in a context of quantum Clifford algebras on Minkowski spacetime. Once the bilinear covariants are expressed in terms of algebraic spinor fields,…

Mathematical Physics · Physics 2014-10-03 Rafal Ablamowicz , Icaro Gonçalves , Roldao da Rocha