Spin Muon Collaboration (SMC)

We present a measurement of the longitudinal spin cross section asymmetry for deep inelasticmuon-nucleon interactions with two high transverse momentum hadrons in the final state. Twomethods of event classification are used to increase the contribution of the Photon Gluon Fusionprocess to above 30%. The most effective one, based on a neural network approach, provides theasymmetries A