Spin 3/2 Beyond the Rarita-Schwinger Framework

Eur.Phys.J.A29:289-306,2006 We employ the two independent Casimir operators of the Poincare group, the squared four--momentum, P^2, and the squared Pauli-Lubanski vector, W^2, in the construction of a covariant mass-m, and spin-3/2 projector in the four-vector-spinor, \psi_{\mu}. This projector prov...

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Bibliographic Details
Main Authors Napsuciale, Mauro, Kirchbach, Mariana, Rodriguez, Simon
Format Journal Article
LanguageEnglish
Published 29.06.2006
Subjects
Physics - High Energy Physics - Phenomenology
Physics - High Energy Physics - Theory
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Summary:Eur.Phys.J.A29:289-306,2006 We employ the two independent Casimir operators of the Poincare group, the squared four--momentum, P^2, and the squared Pauli-Lubanski vector, W^2, in the construction of a covariant mass-m, and spin-3/2 projector in the four-vector-spinor, \psi_{\mu}. This projector provides the basis for the construction of an interacting Lagrangian that describes a causally propagating spin-3/2} particle coupled to the electromagnetic field by a gyromagnetic ratio of g_{3/2}=2.
DOI:10.48550/arxiv.hep-ph/0606308