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Exclusive $\rho\rho$ production in $\gamma\gamma$ interaction at LEP
Exclusive ρρ production in two‐photon collisions is studied at LEP for quasi‐real photons (γγ, centre‐of‐mass energies 161 GeV ⩽ s ⩽ 209 GeV , total integrated luminosity L=698 pb −1) and one virtual photon (γγ*, 89 GeV ⩽ s 209 GeV , L=855 pb −1). The cross sections of the ρρ production pr...
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| Lenguaje: | eng |
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2007
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| Acceso en línea: | https://dx.doi.org/10.1063/1.2714400 http://cds.cern.ch/record/1027245 |
| Sumario: | Exclusive ρρ production in two‐photon collisions is studied at LEP for quasi‐real photons (γγ, centre‐of‐mass energies 161 GeV ⩽ s ⩽ 209 GeV , total integrated luminosity L=698 pb −1) and one virtual photon (γγ*, 89 GeV ⩽ s 209 GeV , L=855 pb −1). The cross sections of the ρρ production processes are determined as a function of the photon virtuality, Q 2, and the two‐photon centre‐of‐mass energy, W γγ, in the kinematic region: Q 2 ⩽ 30 GeV2 and 1 GeV ⩽ W γγ ⩽ 3 GeV. |
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