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arXiv · 1010.1405

Gluon polarisation from high transverse momentum hadron pairs production (COMPASS)

L. Silva
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Abstract

A new preliminary result of a gluon polarisation \Delta G/G obtained selecting high transverse momentum hadron pairs in DIS events with Q^2>1 (GeV/c)^2 is presented. Data has been collected by COMPASS at CERN during the 2002-2004 years. In the extraction of $\Delta G/G$ contributions coming from the leading order $\gamma q$ and QCD processes are taken into account. A new weighting method based on a neural network approach is used. Also a preliminary result of \Delta G/G for events with Q^2<1 (GeV/c)^2 is presented.

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L. Silva. 2010-10-07. Gluon polarisation from high transverse momentum hadron pairs production (COMPASS). https://arxiv.org/abs/1010.1405

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