Spectral representation of the pentagon diagram amplitude

J. S. Frederiksen

Research output: Contribution to journalArticleOther

1 Citation (Scopus)

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 languageEnglish
Pages (from-to)1443-1450
Number of pages8
JournalJournal of Mathematical Physics
Volume15
Issue number9
Publication statusPublished - 1973
Externally publishedYes

Cite this

Frederiksen, J. S. / Spectral representation of the pentagon diagram amplitude. In: Journal of Mathematical Physics. 1973 ; Vol. 15, No. 9. pp. 1443-1450.
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Spectral representation of the pentagon diagram amplitude. / Frederiksen, J. S.

In: Journal of Mathematical Physics, Vol. 15, No. 9, 1973, p. 1443-1450.

Research output: Contribution to journalArticleOther

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AB - 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.

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