Investigation of the process J/{psi} {yields} e{sup +}e{sup -} with the KEDR detector

Journal Article · Sun Mar 15 00:00:00 EDT 2009 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778809030132· OSTI ID:21405982

Baldin, E. M., E-mail: [e-mail].s ^[1]

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1. Russian Academy of Sciences, G. E. Budker Institute of Nuclear Physics, Siberian Division (Russian Federation)

The product of the electron width of the J/{psi} meson and the probability for its decay to an electron-positron pair was measured by using data from the KEDR experiment at the VEPP-4M electron-positron collider. The result was {Gamma}{sub ee} x {Gamma}{sub ee}/{Gamma} = 0.3392 {+-} 0.0068(stat.) {+-} 0.0063(syst.) keV.

• OSTI ID: 21405982
• Journal Information: Physics of Atomic Nuclei, Vol. 72, Issue 3; Other Information: DOI: 10.1134/S1063778809030132; Copyright (c) 2009 Pleiades Publishing, Ltd.; ISSN 1063-7788
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
43 PARTICLE ACCELERATORS
DECAY
ELECTRON-POSITRON COLLISIONS
ELECTRONS
J PSI-3097 MESONS
KEV RANGE
PARTICLE IDENTIFICATION
PROBABILITY
STORAGE RINGS
BOSONS
CHARMONIUM
COLLISIONS
ELECTRON COLLISIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRONS
LEPTONS
MESONS
POSITRON COLLISIONS
QUARKONIUM
VECTOR MESONS