Study of the η-η' system in the two mixing angle scheme
Escribano, Rafel (Universitat Autònoma de Barcelona. Departament de Física)
Frère, Jean Marie (Université Libre de Bruxelles. Service de Physique Théorique)
Institut de Física d'Altes Energies

Additional title:	Study of the eta-eta' system in the two mixing angle scheme
Date:	2005
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.
Grants:	Ministerio de Ciencia y Tecnología FPA2002-00748EU
Note:	Altres ajuts: work partially suportted by EU, HPRN-CT-2002-00311, EURIDICE network
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Electromagnetic Processes and Properties ; Phenomenological Models
Published in:	Journal of high energy physics, Vol. 2005 (June 2005), art. 29, ISSN 1029-8479

DOI: 10.1088/1126-6708/2005/06/029

Postprint 17 p, 354.4 KB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Institut de Física d’Altes Energies (IFAE)
Articles > Research articles
Articles > Published articles