Effective stable particle behavior of the

H. Garcilazo, M. T. Pea

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We investigate the reason behind the fact that the isobar effectively behaves as a stable particle. We first obtain model-independent conditions for this behavior that depend only on the imaginary part of the delta propagator. We then consider a toy model in which the N system is decoupled from the NN system and check that the approximate behavior of the as a stable particle is not in effect controlled by the coupling to NN channels nor due to the narrow width of the resonance. Finally, we describe the N amplitude in the isospin T=2 channels within a meson-exchange model. Experimental N T=2 phase shifts would be welcome. © 1991 The American Physical Society.
Original languageAmerican English
Pages (from-to)2311-2318
Number of pages2079
JournalPhysical Review C
DOIs
StatePublished - 1 Jan 1991
Externally publishedYes

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Mesons
Play and Playthings
isobars
phase shift
mesons
propagation

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Effective stable particle behavior of the. / Garcilazo, H.; Pea, M. T.

In: Physical Review C, 01.01.1991, p. 2311-2318.

Research output: Contribution to journalArticle

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