Pseudoscalar η-η′ mixing and SU(3) breaking

A. Bramon; M. D. Scadron

doi:10.1016/0370-2693(90)91939-9

Pseudoscalar η-η′ mixing and SU(3) breaking

A. Bramon, M. D. Scadron

Department of Physics

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

52 Citations (Scopus)

Abstract

The η-η′ mixing angle θP is deduced from a rather exhaustive set of data including strong and radiative decays. SU(3)-br eaking effects in terms of the constituent quark mass ratio ms/ m ̂≅1.4-1.5 are taken into account whenever necessary. They are essential in predicting θP=-14°±2°, considerably less negative than the generally accepted present value θP∼-20°. © 1990.

Original language	English
Pages (from-to)	346-348
Journal	Physics Letters B
Volume	234
Issue number	3
DOIs	https://doi.org/10.1016/0370-2693(90)91939-9
Publication status	Published - 11 Jan 1990

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AB - The η-η′ mixing angle θP is deduced from a rather exhaustive set of data including strong and radiative decays. SU(3)-br eaking effects in terms of the constituent quark mass ratio ms/ m ̂≅1.4-1.5 are taken into account whenever necessary. They are essential in predicting θP=-14°±2°, considerably less negative than the generally accepted present value θP∼-20°. © 1990.

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DO - 10.1016/0370-2693(90)91939-9

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