The η-η′ mixing angle revisited

A. Bramon; R. Escribano; M. D. Scadron

doi:10.1007/s100529801009

The η-η′ mixing angle revisited

A. Bramon, R. Escribano, M. D. Scadron

Research output: Contribution to journal › Article › Research › peer-review

136 Citations (Scopus)

Abstract

The value of the η-η′ mixing angle θp is phenomenologically deduced from a rather exhaustive and up-to-date analysis of data including strong decays of tensor and higher-spin mesons, electromagnetic decays of vector and pseudoscalar mesons, J/ψ decays into a vector and a pseudoscalar meson, and other transitions. A value of θp between -17° and -13° is consistent with the present experimental evidence and the average θp = -15.5° ± 1.3° seems to be favoured.

Original language	English
Pages (from-to)	271-278
Journal	European Physical Journal C
Volume	7
Issue number	2
DOIs	https://doi.org/10.1007/s100529801009
Publication status	Published - 1 Jan 1999

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Bramon, A., Escribano, R., & Scadron, M. D. (1999). The η-η′ mixing angle revisited. European Physical Journal C, 7(2), 271-278. https://doi.org/10.1007/s100529801009

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AB - The value of the η-η′ mixing angle θp is phenomenologically deduced from a rather exhaustive and up-to-date analysis of data including strong decays of tensor and higher-spin mesons, electromagnetic decays of vector and pseudoscalar mesons, J/ψ decays into a vector and a pseudoscalar meson, and other transitions. A value of θp between -17° and -13° is consistent with the present experimental evidence and the average θp = -15.5° ± 1.3° seems to be favoured.

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