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Charmonium resonance formation in $\gamma\gamma$ collisions with the L3 detector

Measurements of the two-photon partial widths of the charmonium mesons chi /sub c2/ and eta /sub c/ from data collected by the L3 detector are presented. The data comprises 140 pb/sup -1/ at square root (s) approximately=91 GeV and 52 pb/sup -1/ at square root (s) approximately=183 GeV. The Q/sup 2/...

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Autor principal: Blyth, S C
Lenguaje:eng
Publicado: 2000
Materias:
Acceso en línea:https://dx.doi.org/10.1016/S0375-9474(99)00705-8
http://cds.cern.ch/record/443876
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author Blyth, S C
author_facet Blyth, S C
author_sort Blyth, S C
collection CERN
description Measurements of the two-photon partial widths of the charmonium mesons chi /sub c2/ and eta /sub c/ from data collected by the L3 detector are presented. The data comprises 140 pb/sup -1/ at square root (s) approximately=91 GeV and 52 pb/sup -1/ at square root (s) approximately=183 GeV. The Q/sup 2/ dependence of the eta /sub c/ cross section is studied for Q/sup 2/<9 GeV/sup 2/. A J/ psi pole form factor in the VMD model is found to describe the data better than a rho pole. (13 refs).
id cern-443876
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
record_format invenio
spelling cern-4438762019-09-30T06:29:59Zdoi:10.1016/S0375-9474(99)00705-8http://cds.cern.ch/record/443876engBlyth, S CCharmonium resonance formation in $\gamma\gamma$ collisions with the L3 detectorParticle Physics - ExperimentMeasurements of the two-photon partial widths of the charmonium mesons chi /sub c2/ and eta /sub c/ from data collected by the L3 detector are presented. The data comprises 140 pb/sup -1/ at square root (s) approximately=91 GeV and 52 pb/sup -1/ at square root (s) approximately=183 GeV. The Q/sup 2/ dependence of the eta /sub c/ cross section is studied for Q/sup 2/<9 GeV/sup 2/. A J/ psi pole form factor in the VMD model is found to describe the data better than a rho pole. (13 refs).oai:cds.cern.ch:4438762000
spellingShingle Particle Physics - Experiment
Blyth, S C
Charmonium resonance formation in $\gamma\gamma$ collisions with the L3 detector
title Charmonium resonance formation in $\gamma\gamma$ collisions with the L3 detector
title_full Charmonium resonance formation in $\gamma\gamma$ collisions with the L3 detector
title_fullStr Charmonium resonance formation in $\gamma\gamma$ collisions with the L3 detector
title_full_unstemmed Charmonium resonance formation in $\gamma\gamma$ collisions with the L3 detector
title_short Charmonium resonance formation in $\gamma\gamma$ collisions with the L3 detector
title_sort charmonium resonance formation in $\gamma\gamma$ collisions with the l3 detector
topic Particle Physics - Experiment
url https://dx.doi.org/10.1016/S0375-9474(99)00705-8
http://cds.cern.ch/record/443876
work_keys_str_mv AT blythsc charmoniumresonanceformationingammagammacollisionswiththel3detector