$\Delta G/G$ results from the COMPASS experiment for $Q^{2} > 1 GeV^{2}$, using high $p_T$ hadrons

One of the goals of COMPASS experiment is the determination of the gluon polarisation, $\Delta G/G$, for a deep understanding of the spin structure of the nucleon. The gluon polarisation can be measured via the Photon-Gluon-Fusion (PGF) process. One of the methods to identify this process is selecting high $p_T$ hadron pairs in the final state. The data used for this analysis were collected by the COMPASS experiment during the years 2002 to 2006, using a 160 GeV naturally polarised positive muon beam impinging on a polarised nucleon target. A new result of $\Delta G/G$ from high $p_T$ hadron pairs in events with $Q^{2}>1 GeV^{2}$ is presented. This result has a better precision due to the addition of 2006 data and an improved analysis based on a neural network approach. The gluon polarisation is also presented in three bins of $x_G$.