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Vertex operators for production of baryon resonances in nucleon-gamma collisions with preserving gauge invariance and analyticity

A. V. Anisovich

National Research Centre “Kurchatov Institute”, Petersburg Nuclear Physics Institute, Gatchina, 188300, Russia

E-mail Address: alexei@hiskp.uni-bonn.de

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V. V. Anisovich

National Research Centre “Kurchatov Institute”, Petersburg Nuclear Physics Institute, Gatchina, 188300, Russia

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, and

A. V. Sarantsev

National Research Centre “Kurchatov Institute”, Petersburg Nuclear Physics Institute, Gatchina, 188300, Russia

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https://doi.org/10.1142/S0217751X16501931Cited by:2 (Source: Crossref)

Abstract

Vertex operators for photo- and electro-production of baryon states with arbitrary spin-parity, $γ + N \to B (J^{P})$ , are constructed. The operators obey gauge invariance and analyticity constraints. Analyticity is realized as a requirement of the generalized Siegert theorem for vertex form factors.

Keywords:

PACS: 13.60.Le, 11.55.Jy, 12.40.Yx

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