### Abstract

We solve the coupled Boltzmann equation for the system of light photinos interacting with pions and [Formula presented]’s (the gluon-gluino bound state) to determine the relic abundance of light photinos in the light gaugino scenario. Cosmology bounds the ratio [Formula presented] of the [Formula presented] mass to the [Formula presented] mass to be less than about [Formula presented]. We also use a model Lagrangian embodying crossing symmetry between the [Formula presented] and [Formula presented] reactions to identify cosmologically favored regions of [Formula presented] lifetime as a function of [Formula presented] and [Formula presented] masses.

Original language | English (US) |
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Pages (from-to) | 6096-6106 |

Number of pages | 11 |

Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |

Volume | 56 |

Issue number | 10 |

DOIs | |

State | Published - Jan 1 1997 |

Externally published | Yes |

### ASJC Scopus subject areas

- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)

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## Cite this

*Physical Review D - Particles, Fields, Gravitation and Cosmology*,

*56*(10), 6096-6106. https://doi.org/10.1103/PhysRevD.56.6096