Recent results of the STAR high-energy polarized proton-proton program at RHIC at BNL

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dc.creatorSurrow, Bernd
dc.date2007-05-23
dc.date.accessioned2026-07-07T10:35:57Z
dc.date.available2026-07-07T10:35:57Z
dc.descriptionThe STAR experiment at the Relativistic Heavy-Ion Collider (RHIC) at Brookhaven National Laboratory (BNL) is carrying out a spin physics program colliding transverse or longitudinal polarized proton beams at $\sqrt{s}=200-500 $GeV to gain a deeper insight into the spin structure and dynamics of the proton. These studies provide fundamental tests of Quantum Chromodynamics (QCD). One of the main objectives of the STAR spin physics program is the determination of the polarized gluon distribution function through a measurement of the longitudinal double-spin asymmetry, $A_{LL}$, for various processes. Recent results will be shown on the measurement of $A_{LL}$ for inclusive jet production, neutral pion production and charged pion production at $\sqrt{s}=200 $GeV. In addition to these measurements involving longitudinal polarized proton beams, the STAR collaboration has performed several important measurements employing transverse polarized proton beams. New results on the measurement of the transverse single-spin asymmetry, $A_{N}$, for forward neutral pion production and the first measurement of $A_{N}$ for mid-rapidity di-jet production will be discussed.
dc.description8 pages, 5 figures, Invited talk given at the 17th International Spin Physics Symposium (SPIN 2006), October 2006, Kyoto, Japan
dc.identifierhttps://arxiv.org/abs/0705.3483
dc.identifierhttp://arxiv.org/abs/0705.3483
dc.identifierAIPConf.Proc.915:293-300,2007
dc.identifierdoi:10.1063/1.2750783
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/179892
dc.subjectHigh Energy Physics - Experiment
dc.titleRecent results of the STAR high-energy polarized proton-proton program at RHIC at BNL
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