# Type-4 spinors: transmuting from Elko to single-helicity spinors

## TL;DR

This paper reports a theoretical discovery of a new class of spinor fields, called type-4 spinors, arising from mapping Elko spinors into single helicity spinors, revealing new mathematical and physical insights.

## Contribution

It introduces and explores the properties of type-4 spinors, a novel class within Lounesto classification, resulting from a mapping procedure of Elko spinors.

## Key findings

- Identification of type-4 spinors from Elko mappings
- Mathematical characterization of type-4 spinors
- Potential physical implications of type-4 spinors

## Abstract

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 type-4 spinor field within Lounesto classification. In this paper we explore the underlying physical and mathematical contents of the type-4 spinor.