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Pair production of squarks inep-collisions
Authors:K J F Gaemers  M M J F Janssen
Institution:1. NIKHEF, P.O. Box 41882, 1009 DB, Amsterdam, The Netherlands
Abstract:The production of squarks atep colliders is studied by comparing the Weizsäcker-Williams approximation and an exact tree level calculation. We consider the processep→eqqX→eqqγγX. For this calculation, on the amplitude level, the Feynman diagrams can be split into sub-diagrams. This splitting has great advantages for numerical calculations. Using these techniques the dependence of the cross section on the mass of the squark is computed. We also present various kinematical distributions. An elegant method for calculating tree amplitudes with external fermions of arbitrary mass and spin is given for completeness.
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