Upper limits for the production of light short-lived neutral particles in radiative Upsilon decay.

T J V Bowcock ,G B Word,M Ogg,A Engler,R Kowalewski,E Blucher,Xia Yi,N Katayama,B Gittelman,D L Kreinick,A Silverman,C Rosenfeld,A Chen,S W Gray,M Pisharody,J Kandaswamy,E H Thorndike,A Jawahery,P C Stein,F Sannes,R T Giles,T Copie,N Horwitz,A J Sadoff,P Haas,G C Moneti,S Holzner,H Kagan,S E Csorna,M S Alam,M D Mestayer,D Peterson,F M Pipkin,K Kinoshita,R Ehrlich,V Tanikella,J W Dewire,S Behrends,R Desalvo,R S Galik,C Bebek,F Morrow,R Namjoshi,R S Panvini,P Lubrano,D G Cassel,D L Hartill,C Rippich,N B Mistry,M Hempstead,A M Halling,B K Heltsley,E Nordberg,D Riley,R Poling,D Perticone,J A Guida ,K Berkelman ,I J Kim ,R.b Sutton ,L Garren ,R W Kraemer ,C R Sun ,G J Bobbink ,A Bean ,H Vogel ,J M Guida ,J Green ,M Ito ,J Hassard ,T Ferguson ,M Goldberg ,Richard Wilson ,I C Brock ,M Gilchriese ,J Muêller ,P Tipton ,R Stone ,S Stone ,Y Kubota ,T Jensen ,R Kass ,P Avery ,D Bortoletto ,K F Read ,Thomas R Gentile ,D Besson

doi:10.1103/physrevlett.56.2676

Upper limits for the production of light short-lived neutral particles in radiative Upsilon decay.

T J V Bowcock , G B Word + Show 85 more

https://doi.org/10.1103/physrevlett.56.2676

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Journal: Physical review letters	Publication Date: Jun 23, 1986
Citations: 35

Affiliation: Harvard University Press

#Cornell Electron Storage Ring #Radiative Upsilon Decay + Show 8 more

Abstract
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Abstract

We have searched for the exclusive decay of the UPSILON(1S-italic) into a photon and a short-lived spin-0 particle, a-italic, decaying into e-italic/sup +/e/sup -/, using the CLEO detector at the Cornell electron storage ring. Upper limits for the product branching ratio B-italic(UPSILON(1S-italic)..--> gamma..a-italic) x B-italic(a-italic..-->..e-italic/sup +/e/sup -/) are established for a range of masses, 2m-italic/sub e-italic/

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