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arXiv · hep-ph/9611285

Proton Decay with a Light Gravitino or Axino

Kiwoon Choi·Eung Jin Chun·Jae Sik Lee
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Abstract

We consider the proton decay in supersymmetric models with a gravitino or axino lighter than the proton. This consideration leads to a stringent limit on the R parity and B violating Yukawa coupling of the superpotential operator U^c_i D^c_j D^c_k as $λ"_{112} < 10^{-15} (m_{3/2}/eV)$ for a light gravitino, and $λ"_{112} < 10^{-15} (F_a/ 10^{10} GeV)$ for a light DFSZ axino. For hadronic axino, the constraint is weakened by the factor of 10^{3}.

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Kiwoon Choi, Eung Jin Chun, Jae Sik Lee. 1996-11-09. Proton Decay with a Light Gravitino or Axino. https://doi.org/10.1103/physrevd.55.3924

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