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Rho-rho production in two-photon collisions
The measurement of exclusive ρρ production in two-photon interactions at LEP, γγ ∗ → ρρ, was studied at two-photon center-of-mass energies of 1.1 GeV ≤ Wγγ ≤ 3 GeV and photon virtualities of Q 2 < 0.02 GeV2 and 0.2 ≤ Q 2 ≤ 30 GeV2 . These data allow on the one hand a comparison to QCD and the gen...
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| Lenguaje: | eng |
| Publicado: |
2005
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| Acceso en línea: | http://cds.cern.ch/record/966901 |
| Sumario: | The measurement of exclusive ρρ production in two-photon interactions at LEP, γγ ∗ → ρρ, was studied at two-photon center-of-mass energies of 1.1 GeV ≤ Wγγ ≤ 3 GeV and photon virtualities of Q 2 < 0.02 GeV2 and 0.2 ≤ Q 2 ≤ 30 GeV2 . These data allow on the one hand a comparison to QCD and the generalised vector dominance model (GVDM). On the other hand, the large kinematical range permits to check models with exotic mesons. |
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