Measurement of the gluon polarisation at COMPASS
G. Brona (for the COMPASS Collaboration)
TL;DR
This paper reviews measurements of gluon polarization in nucleons at COMPASS, using two methods involving open charm detection and high-p_T hadron pairs to understand the gluon's contribution to nucleon spin.
Contribution
It introduces and compares two novel experimental approaches for measuring gluon polarization in nucleons at COMPASS.
Findings
Gluon polarization measurements obtained using open charm tagging.
Gluon polarization measurements using high-p_T hadron pairs.
Comparison of two different measurement techniques.
Abstract
COMPASS experiment measurements of the gluon polarisation in nucleon, DeltaG/G are reviewed. Two different approaches based on tagging the Photon Gluon Fusion process are described. They rely on the open charm meson or high-p_T hadron pairs detection.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Particle Detector Development and Performance · High-Energy Particle Collisions Research