nclusive Jet Production in Two-Photon Collisions at LEP

L3 COLLABORATION, P. ACHARD, M.T.DOVA ET AL

PHYSICS LETTERS B

ELSEVIER

Año: 2004 vol. 602 p. 157 - 166

0370-2693

Inclusive jet production, e+e- -> e+e- \ee$ jet X, is studied using 560/pb of data collected at LEP with the L3 detector at centre-of-mass energies between 189 and 209 GeV. The inclusive differential cross section is measured using a k_t jet algorithm as a function of the jet transverse momentum, pt, in the range 3<pt<50 GeV for a pseudorapidity, eta, in the range -1<eta<1. This cross section is well represented by a power law. For high pt, the measured cross section is significantly higher than the NLO QCD predictions, as already observed for inclusive charged and neutral pion production.