### Abstract

A method developed in two previous papers is used to derive a double spectral representation with Mandelstam boundary for the pentagon diagram amplitude for the production process A B → C D N. Restrictions on the masses and kinematic invariants for which this representation is valid are found and it is discussed how a representation can be obtained for wider ranges of these variables. Finally, a comparison is made with the results of other authors.

Original language | English |
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Pages (from-to) | 1443-1450 |

Number of pages | 8 |

Journal | Journal of Mathematical Physics |

Volume | 15 |

Issue number | 9 |

Publication status | Published - 1973 |

Externally published | Yes |

## Cite this

Frederiksen, J. S. (1973). Spectral representation of the pentagon diagram amplitude.

*Journal of Mathematical Physics*,*15*(9), 1443-1450.