vix.ing · top · new · best · stats · spec

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

2010/10/07 by L. Silva, Silva, L.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex

paper · pdf · doi:10.48550/arxiv.1010.1405

Advanced Studies Institute On Symmetries And Spin (SPIN-Praha-2008) 20-26 Jul 2008, Prague, Czech Republic. The proceedings of the ASI will be published in The European Physical Journal Special Topics (EJP ST) Series

openalex publication_date 2010/10/07 · arxiv created 2010/10/08 · openalex created_date 2016/06/24 · arxiv updated 2019/08/13 · openalex updated_date 2026/07/28

Abstract

A new preliminary result of a gluon polarisation ΔG/G obtained selecting high transverse momentum hadron pairs in DIS events with Q2>1 (GeV/c)2 is presented. Data has been collected by COMPASS at CERN during the 2002-2004 years. In the extraction of ΔG/G contributions coming from the leading order γq and QCD processes are taken into account. A new weighting method based on a neural network approach is used. Also a preliminary result of ΔG/G for events with Q2<1 (GeV/c)2 is presented.

Related