TL;DR
The STAR detector at RHIC enables advanced spin physics experiments in polarized proton collisions, allowing precise measurements of gluon contributions and quark-antiquark sea polarization through jet, photon, and W boson detection.
Contribution
This paper discusses the capabilities of the STAR detector for spin physics, highlighting its potential for precise measurements of gluon and sea quark polarizations in proton collisions.
Findings
Photon + jet measurements will determine gluon spin contribution.
Detection of W decay electrons will measure sea quark polarization.
STAR's large acceptance enhances spin physics studies.
Abstract
The STAR detector will bring unique capabilities to the study of collisions up to total center of mass energies of 500 GeV at RHIC. The large acceptance of the time projection chamber and the electromagnetic calorimeter enable STAR to observe jets, and to detect photons and electrons in important regions of phase space. The premier experiments of the STAR spin program are discussed in this contribution. Photon + jet coincidence measurements will provide the world's best determination of the contribution gluons make to the proton's spin. Detection of the daughter electrons and positrons from decay will enable the determination of the polarization of the sea within the proton.
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Taxonomy
TopicsHigh-Energy Particle Collisions Research · Particle physics theoretical and experimental studies · Particle Detector Development and Performance