Annihilation, glueball and flavor mixing effects in pseudoscalar mesons

W.S. Carvalho; A.C.B. Antunes; A.S. de Castro

doi:doi:10.1007/s100529800967

EPJ

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2024 Impact factor 4.8

Particles and Fields

Eur. Phys. J. C 7, 95-100
DOI 10.1007/s100529800967

Annihilation, glueball and flavor mixing effects
in pseudoscalar mesons

W.S. Carvalho¹ - A.C.B. Antunes¹ - A.S. de Castro²

¹ Instituto de Física, Universidade Federal do Rio de Janeiro, C.P. 68528, Ilha do Fundão, 21945-970 Rio de Janeiro, RJ, Brazil
² UNESP-Campus de Guaratinguetá-DFQ, C.P. 205, 12500-000-Guaratinguetá, SP, Brazil

Received: 8 August 1997 / Revised version: 11 February 1998 / Published online: 22 October 1998

Abstract
The pseudoscalar mesons $\eta(547)$ , $\eta^{\prime}(958)$ and $\eta^{\prime\prime}(1410)$ are studied in the gluonium-quarkonium mixing framework. The SU(3)-flavor symmetry breaking and annihilation effects are considered. Estimates of the glueball mass and of the m_s/m_u ratio are provided. The system $\eta(1295)$ and $\eta(1490)$ is also considered in a mixing scheme.