Rare decay modes of the neutral pion

descriptionPublicationkeyboard_double_arrow_right Article 01 Jun 1984 English Publisher:Springer Science and Business Media LLCJournal:Zeitschrift für Physik C Particles and Fields, volume 22, pages 197-199 (issn: 0170-9739, eissn: 1434-6052,

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Authors: Pich, Antonio; Bernabéu, José;

doi: 10.1007/bf01572172

handle: 10261/33454

Rare decay modes of the neutral pion

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Abstract

The slope of the form factor for pi^0 → e+ e- γ and the real part of the amplitude for pi^0 → e+ e- are calculated by means of the quark triangle mechanism. The correct sign for the form factor slope is reproduced. The pi^0 → e+ e- rate obtained is slightly larger than the unitarity limit and smaller than the present experimental rate.

The authors acknowledge the financial support from the Comisión Asesora de Investigación Cientifica y Tecnica. One of us (A.P.) is indebted to Caja de Ahorros de Valencia for a fellowship.

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University of Valencia
Spain

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