# Gluon polarization measurements from longitudinally polarized proton-proton collisions at STAR

26 Sep 2019 Chang Zilong for the STAR Collaboration

The gluon polarization contribution to the proton spin is an integral part to solve the longstanding proton spin puzzle. At the Relativistic Heavy Ion Collider (RHIC), the STAR experiment has measured jets produced in mid-pseudo-rapidity, $|\eta| <$ 1.0, and full azimuth, $\phi$, from longitudinally polarized $pp$ collisions to study the gluon polarization in the proton... (read more)

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• HIGH ENERGY PHYSICS - EXPERIMENT
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