From Dipole spinors to a new class of mass dimension one fermions

TL;DR

This paper explores a new class of spin-1/2 fermions called Ahluwalia class-7 spinors, which have mass dimension one and are potential dark matter candidates, expanding the understanding of dipole spinors and their dark counterparts.

Contribution

It introduces and analyzes a novel class of dipole spinors with mass dimension one, distinct from traditional spin-1/2 fermions, and explores their properties as dark matter candidates.

Findings

Identified Ahluwalia class-7 spinors as eigenspinors of the chirality operator.

Demonstrated these spinors belong to Lounesto's class-6 dipole spinors.

Proposed these spinors as potential dark matter candidates.

Abstract

In this letter, we investigate a quite recent new class of spin one-half fermions, namely \emph{Ahluwalia class-7 spinors}, endowed with mass dimensionality $1$ rather than $3/2$, being candidates to describe dark matter. Such spinors, under the Dirac adjoint structure, belongs to the Lounesto's class-6, namely dipole spinors. Up to our knowledge, dipole spinor fields have Weyl spinor fields as their most known representative, nonetheless, here we explore the \emph{dark} counterpart of the dipole spinors, which represents eigenspinors of the chirality operator.