| Title: | MEASUREMENT OF THE HADRONIC CROSS SECTION OF DOUBLE TAGGED γγ EVENTS AT ALEPH |
| DOI No: | 10.1142/9789812777157_0032 |
| Source: | PHOTON 2001 (pp 166-169)
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| Author(s): | G. PRANGE
Fachbereich Physik, Universität Siegen, 57068 Siegen, Germany
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| Abstract: | The interaction of virtual photons has been investigated using double tagged γ*γ*-events with hadronic final states, taken by the ALEPH experiment at e+e- center-of-mass energies  . 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 LO-BFKL predictions are ruled out by the data while NLO-BFKL calculations are in resonable agreement with the measurement. |
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