In this paper, we discuss fundamental aspects related to the helicity and dynamics of the spin-1/2 fermions encompassed within the very well-known Lounesto’s classification. More specifically, we investigate how the bi-spinorial structures behave under discrete symmetries, as well as analyze some consequences on the spinors dynamics. In addition, we find an interesting relation between the spinor helicity and the Lounesto spinor classification.

中文翻译：

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旋涡结构、离散对称性和一些后果

在本文中，我们讨论了与众所周知的 Lounesto 分类中包含的自旋 1/2 费米子的螺旋性和动力学相关的基本方面。更具体地说，我们研究了双旋涡结构在离散对称下的行为，并分析了对旋量动力学的一些影响。此外，我们发现旋量螺旋度和 Lounesto 旋量分类之间存在有趣的关系。