Inclusive pi0 and K0s Production in Two-Photon Collisions at LEP

Details Inclusive pi0 and K0s Production in Two-Photon Collisions at LEP Inclusive pi0 and K0s Production in Two-Photon Collisions at LEP

2001-09-24

arxiv.org/abs/hep-ex/0109037v1

Phys.Lett.B524:44-54,2002

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

10.1016/S0370-2693(01)01269-2

The reactions ee->ee+pi0+X and ee->ee+K0s+X are studied using data collected at LEP with the L3 detector at centre-of-mass energies between 189 and 202 GeV. Inclusive differential cross sections are measured as a function of the particle transverse momentum pt and the pseudo-rapidity. For pt < 1.5 GeV, the pi0 and K0s differential cross sections are described by an exponential, typical of soft hadronic processes. For pt > 1.5 GeV, the cross sections show the presence of perturbative QCD processes, described by a power-law. The data are compared to Monte Carlo predictions and to NLO QCD calculations.

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