Measurement of the branching ratios psi ' -> e(+)e(-), psi ' -> J/psi pi(0) pi(0) and psi ' -> J/psi eta

M. Ambrogiani; S. Bagnasco; W. Baldini; D. Bettoni; G. Borreani; A. Buzzo; R. Calabrese; M. Cardarelli; R. Cester; P. Dalpiaz; I. Dobbs Dixon; X. Fan; G. Garzoglio; K. Gollwitzer; A. Hahn; S. Jin; J. Kasper; G. Lasio; M. L. Vetere; E. Luppi; P. Maas; M. Macri; M. Mandelkern; F. Marchetto; M. Marinelli; W. Marsh; M. Martini; MENICHETTI, Ezio; R. Mussa; OBERTINO, Maria Margherita; M. Pallavicini; N. Pastrone; C. Patrignani; T. K. Pedlar; J. Peoples; S. Pordes; E. Robutti; J. Rosen; P. Rumerio; A. Santroni; M. Savrie; J. Schultz; K. K. Seth; G. Stancari; M. Stancari; J. Streets; A. Tomaradze; S. Werkema; G. Zioulas

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Article . 2000

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Archivio Istituzionale della Ricerca (AperTO) - Università di Torino

Article . 2000

Data sources: Archivio Istituzionale della Ricerca (AperTO) - Università di Torino

Measurement of the branching ratios psi ' -> e(+)e(-), psi ' -> J/psi pi(0) pi(0) and psi ' -> J/psi eta

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 2000 Italy English Publisher:American Institute of Physics:2 Huntington Quadrangle, Suite 1NO1:Melville, NY 11747:(800)344-6902, (631)576-2287, EMAIL: subs@aip.org, INTERNET: http://www.aip.org, Fax: (516)349-9704

Authors: M. Ambrogiani; S. Bagnasco; W. Baldini; D. Bettoni; G. Borreani; A. Buzzo; R. Calabrese; +42 Authors

handle: 11567/188425 , 2318/105350

Measurement of the branching ratios psi ' -> e(+)e(-), psi ' -> J/psi pi(0) pi(0) and psi ' -> J/psi eta

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Abstract

We have determined the following psi' branching ratios using the large event sample collected by Fermilab experiment E835 in the reaction -->psi': B(psi'--> e(+)e(-)) = (7.4 +/- 0.2 +/- 0.7) x 10(-3), B(psi'--> J/psi pi(0)pi(0)) = (18.7 +/- 0.9 +/- 1.3)% and B(psi'--> J/psi eta) = (4.1 +/- 0.3 +/- 0.5)%.

Country

Italy

Related Organizations

University of Genoa
Italy
University of Turin
Italy

Keywords

PARTICLE PHYSICS; FERMILAB; EXPERIMENT-835; ANNIHILATION; CALORIMETER; E760

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