Study of the η-η′ System in the two mixing angle scheme

Rafel Escribano; Jean Marie Frère

doi:https://doi.org/10.1088/1126-6708/2005/06/029

Study of the η-η′ System in the two mixing angle scheme

Rafel Escribano, Jean Marie Frère

Department of Physics

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

60 Citations (Scopus)

Abstract

An analysis of various decay processes is performed using the two mixing angle description of the η-η′ system, incorporating the link to the gluonic sector through anomalies. The agreement is excellent. For comparison with previous works, our results are expressed both in the "octet- singlet" and in the "quark-flavour" basis. It turns out that at the present experimental accuracy, the two angles are significantly different in the former, but not in the latter basis. The implications of our analysis for the large Nc χPT predictions are also discussed. © SISSA 2005.

Original language	English
Pages (from-to)	643-657
Journal	Journal of High Energy Physics
DOIs	https://doi.org/10.1088/1126-6708/2005/06/029
Publication status	Published - 1 Jun 2005

Keywords

Electromagnetic Processes and Properties
Phenomenological Models

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N2 - An analysis of various decay processes is performed using the two mixing angle description of the η-η′ system, incorporating the link to the gluonic sector through anomalies. The agreement is excellent. For comparison with previous works, our results are expressed both in the "octet- singlet" and in the "quark-flavour" basis. It turns out that at the present experimental accuracy, the two angles are significantly different in the former, but not in the latter basis. The implications of our analysis for the large Nc χPT predictions are also discussed. © SISSA 2005.

AB - An analysis of various decay processes is performed using the two mixing angle description of the η-η′ system, incorporating the link to the gluonic sector through anomalies. The agreement is excellent. For comparison with previous works, our results are expressed both in the "octet- singlet" and in the "quark-flavour" basis. It turns out that at the present experimental accuracy, the two angles are significantly different in the former, but not in the latter basis. The implications of our analysis for the large Nc χPT predictions are also discussed. © SISSA 2005.

KW - Electromagnetic Processes and Properties

KW - Phenomenological Models

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