Study of hadronic final states from double tagged gammagamma events at LEP

TL;DR

This paper investigates virtual photon interactions through double tagged gamma-gamma events with hadronic final states at LEP, comparing experimental results to theoretical models and calculations.

Contribution

It provides a detailed comparison of measured cross sections with Monte Carlo simulations and advanced QCD calculations, enhancing understanding of gamma-gamma interactions.

Findings

Measured cross sections agree with Monte Carlo models within uncertainties

Data shows consistency with next-to-leading-order QCD predictions

Results provide constraints on BFKL calculations at high energies

Abstract

The interaction of virtual photons is investigated using double tagged gammagamma events with hadronic final states recorded by the ALEPH experiment at e^+e^- centre-of-mass energies between 188 and 209 GeV. The measured cross section is compared to Monte Carlo models, and to next-to-leading-order QCD and BFKL calculations.