A first prediction of the electromagnetic rare decays η'→π0γγ and η'→ηγγ
Escribano, Rafel (Universitat Autònoma de Barcelona. Departament de Física)
Institut de Física d'Altes Energies

Date:	2012
Description:	8 pàg.
Abstract:	The branching ratio and the invariant mass spectrum of the η0 → π0γγ and η0 → ηγγ electromagnetic rare decays are determined within the frameworks of the Linear Sigma Model and Vector Meson Dominance for the corresponding scalar and vector meson exchange contributions. The measured η → π0γγ process serves as a test of our approach while the non yet measured η0 → (π0,η)γγ reactions are predicted for the first time. Our prediction for the η → π0γγ decay agrees with recent experimental reported values, thus supporting the validity of our framework. Therefore, our predictions for the η0 → π0γγ and η0 → ηγγ decays should be taken as a first indication of the possible values of the associated branching ratios. We hope these predictions to be interesting and useful for experiments such as KLOE-2, Crystal Ball, WASA, and BES-III where these processes are expected to be measured in the next future.
Note:	Contribution to the proceedings of Xth Quark Confinement and the Hadron Spectrum (Confinement X). 8-12 October, 2012. TUM Camous Garching, Munich, Germany
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra, i la creació d'obres derivades, sempre que no sigui amb finalitats comercials i que es distribueixin sota la mateixa llicència que regula l'obra original. Cal que es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Hep-ph ; Hep-ex ; Nucl-th
Published in:	Proceedings of Science, Vol. ConfinementX (2012) , art. 115, ISSN 1824-8039

DOI: 10.22323/1.171.0115

8 p, 426.5 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