Longitudinal Double Spin Asymmetry in Inclusive Jet Production at STAR
Journal Article
·
· AIP Conference Proceedings
- Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
This contribution reports on the first measurement of the longitudinal double-spin asymmetry ALL for the inclusive production of jets in polarized proton-proton collisions at {radical}(s) = 200 GeV. The data were collected with STAR at RHIC in the years 2003 and 2004, and correspond to a sampled integrated luminosity of 0.3 pb-1 with beam polarizations up to 45%. The results on ALL cover jet transverse momenta 5 < pT < 17 GeV/c and agree with perturbative QCD evaluations based on deep-inelastic scattering parametrizations for the gluon polarization in the proton. The results disfavor large positive gluon polarization in the polarized proton.
- OSTI ID:
- 20895092
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 870; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Longitudinal Double Spin Asymmetry in Inclusive Jet Production atSTAR
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OSTI ID:876637
Measurement of the double longitudinal spin asymmetry in inclusive jet production in polarized p+p collisions at {radical}(s) = 200 GeV
Journal Article
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Tue Jul 11 00:00:00 EDT 2006
· AIP Conference Proceedings
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OSTI ID:20873301