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Measurement of the hadronic cross section of double tagged $\gamma\gamma$ events at LEP
The interaction of virtual photons has been investigated using double tagged gamma*gamma*-events with hadronic final states, taken by the ALEPH experiment at e+e- center-of-mass energies sqrt{s_{ee}} = 189 - 208 GeV. The measured cross section is compared to the PYTHIA and the PHOT02 Monte Carlo Mod...
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| Lenguaje: | eng |
| Publicado: |
2002
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| Acceso en línea: | http://cds.cern.ch/record/644929 |
| _version_ | 1780900821056094208 |
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| author | CERN. Geneva. ALEPH |
| author_facet | CERN. Geneva. ALEPH |
| author_sort | CERN. Geneva. ALEPH |
| collection | CERN |
| description | The interaction of virtual photons has been investigated using double tagged gamma*gamma*-events with hadronic final states, taken by the ALEPH experiment at e+e- center-of-mass energies sqrt{s_{ee}} = 189 - 208 GeV. The measured cross section is compared to the PYTHIA and the PHOT02 Monte Carlo Model, a NLO QCD calculation and BFKL calculations. The NLO QCD prediction is largely consistent with the data. The data do not show a rise of the cross section at high Y as predicted by LO BFKL, but are described by NLO BFKL calculations. |
| id | cern-644929 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2002 |
| record_format | invenio |
| spelling | cern-6449292022-01-27T08:58:20Zhttp://cds.cern.ch/record/644929engCERN. Geneva. ALEPHMeasurement of the hadronic cross section of double tagged $\gamma\gamma$ events at LEPXXThe interaction of virtual photons has been investigated using double tagged gamma*gamma*-events with hadronic final states, taken by the ALEPH experiment at e+e- center-of-mass energies sqrt{s_{ee}} = 189 - 208 GeV. The measured cross section is compared to the PYTHIA and the PHOT02 Monte Carlo Model, a NLO QCD calculation and BFKL calculations. The NLO QCD prediction is largely consistent with the data. The data do not show a rise of the cross section at high Y as predicted by LO BFKL, but are described by NLO BFKL calculations.CERN-ALEPH-2002-026CERN-ALEPH-CONF-2002-015oai:cds.cern.ch:6449292002-07-12 |
| spellingShingle | XX CERN. Geneva. ALEPH Measurement of the hadronic cross section of double tagged $\gamma\gamma$ events at LEP |
| title | Measurement of the hadronic cross section of double tagged $\gamma\gamma$ events at LEP |
| title_full | Measurement of the hadronic cross section of double tagged $\gamma\gamma$ events at LEP |
| title_fullStr | Measurement of the hadronic cross section of double tagged $\gamma\gamma$ events at LEP |
| title_full_unstemmed | Measurement of the hadronic cross section of double tagged $\gamma\gamma$ events at LEP |
| title_short | Measurement of the hadronic cross section of double tagged $\gamma\gamma$ events at LEP |
| title_sort | measurement of the hadronic cross section of double tagged $\gamma\gamma$ events at lep |
| topic | XX |
| url | http://cds.cern.ch/record/644929 |
| work_keys_str_mv | AT cerngenevaaleph measurementofthehadroniccrosssectionofdoubletaggedgammagammaeventsatlep |