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arXiv · 2411.05242

CPT Symmetry and Its Breaking in the Chiral Fermion Formalism

I. P-Castro·J. L. Díaz-Cruz·A. Pérez-Lorenzana
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Abstract

In this paper, we review the fundamental aspects of ${\cal N} = 1$ supergravity (SUGRA) and employ the chiral formalism to describe spin-$\frac{3}{2}$ fermions. Armed with this, we analyze the discrete symmetries of the graviton in the context of linearized gravity (LG) and Rarita-Schwinger (RS) fields, which include the description of the gravitino. Additionally, we highlight the advantages of the chiral formalism in classifying Lorentz and CPT-violating terms in RS theories, extending these models by including Lorentz-violating operators, as has been done in LG.

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I. P-Castro, J. L. Díaz-Cruz, A. Pérez-Lorenzana. 2024-11-07. CPT Symmetry and Its Breaking in the Chiral Fermion Formalism. https://arxiv.org/abs/2411.05242

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