Using jet asymmetries to access ?G at STAR

Research output: Contribution to conferencePaperpeer-review

Abstract

We present the first inclusive jet longitudinal double spin asymmetry ALLand differential cross-section measurement from STAR. This analysis reflects 1 pb-1of polarized p¯p¯ data taken at vs = 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). ALLis compared to NLO pQCD calculations, which incorporate several possible gluon helicity distributions, and is shown to disfavor the maximum gluon scenario.

Original languageEnglish
Pages205-208
Number of pages4
StatePublished - 2006
Event41st Rencontres de Moriond on QCD and High Energy Hadronic Interactions 2006 - La Thuile, Italy
Duration: Mar 18 2006Mar 25 2006

Conference

Conference41st Rencontres de Moriond on QCD and High Energy Hadronic Interactions 2006
Country/TerritoryItaly
CityLa Thuile
Period3/18/063/25/06

Bibliographical note

Publisher Copyright:
© 2006 by Rencontres de Moriond.

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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