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Coupled-channel analysis of the pi eta and KK systems near KK threshold

It is shown that the behaviour of the pi eta and KK I=1 systems near KK threshold may be explained by a two-channel resonance with very large partial widths. The narrowness of the pi eta peak at 980 MeV can be explained by the action of unitarity and analyticity at KK threshold (a cusp phenomenon)....

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Detalles Bibliográficos
Autor principal:	Flatte, S M
Lenguaje:	eng
Publicado:	1976
Materias:	Particle Physics - Phenomenology
Acceso en línea:	https://dx.doi.org/10.1016/0370-2693(76)90654-7 http://cds.cern.ch/record/874002

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