CPT and CP properties of Majorana particles, and the consequences

@article{Kayser1983CPTAC,
  title={CPT and CP properties of Majorana particles, and the consequences},
  author={Boris J. Kayser and Alfred Scharff Goldhaber},
  journal={Physical Review D},
  year={1983},
  volume={28},
  pages={2341-2344}
}
Since a Majorana neutrino is its own antiparticle under $\mathrm{CPT}$, rather than $C$, an analysis of the $\mathrm{CPT}$ and $\mathrm{CP}$ characteristics of a Majorana particle is performed. The $\mathrm{CPT}$ transformation properties of a Majorana particle of arbitrary spin are obtained in a very simple way. Implications of these properties for the electromagnetic matrix elements of Majorana particles of spin \textonehalf{} are derived. Finally, the question of when different Majorana… Expand
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TLDR
It is shown that under {ital CPT} invariance all the multipoles of the mass distribution are the same for a particle and its antiparticle and in a quantum theory of gravity the coupling of a particle to the graviton is in general different from that of its antiparticles. Expand
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