Using Jet Asymmetries to access the Gluon Helicity Distribution of the Proton at STAR
| dc.creator | Fatemi, Renee | |
| dc.date | 2006-06-02 | |
| dc.date.accessioned | 2026-07-07T07:18:35Z | |
| dc.date.available | 2026-07-07T07:18:35Z | |
| dc.description | We present the first inclusive jet longitudinal double spin asymmetry A_LL and differential cross-section measurement from STAR. This analysis reflects ~1 pb^-1 of polarized pp data taken at sqrt{s}=200 GeV with beam polarizations of 30-45% in years 2003 and 2004. Agreement between the measured differential cross-section and next-to-leading order (NLO) calculations validate the interpretation of the asymmetry results within the framework of perturbative Quantum Chromodynamics (pQCD). A_LL is compared to NLO pQCD calculations, which incorporate several possible gluon helicity distributions, and is shown to disfavor the maximum gluon scenario. | |
| dc.description | 4 pages, 2 figures | |
| dc.identifier | https://arxiv.org/abs/nucl-ex/0606007 | |
| dc.identifier | http://arxiv.org/abs/nucl-ex/0606007 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/114351 | |
| dc.subject | Nuclear Experiment | |
| dc.title | Using Jet Asymmetries to access the Gluon Helicity Distribution of the Proton at STAR | |
| dc.type | text |