H1prelim-01-031

Measurements of 2-jet and 3-jet cross sections in photoproduction at HERA

Reference N.N., to be presented at DIS 2001, April 2001
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Contact Sascha Caron
Abstract 2-jet and 3-jet cross sections as functions of different jet kinematic variables are measured in photoproduction using the H1 detector at HERA. The data sample comprises e+p data collected from 1995-97. Jets are found using the longitudinal kt algorithm in the laboratory frame and requiring the highest tranverse momentum jet to have at least 25 GeV. These high E_T jets provide stringent tests of pQCD and of structure functions of the photon and proton.
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