Longitudinal Double-Spin Asymmetry for Inclusive Jet Production in p⃗ +p⃗ Collisions at √s=200  GeV

Abelev, B. I. and Planinić, Mirko and Poljak, Nikola and Zuo, J. X. (STAR Collaboration) (2008) Longitudinal Double-Spin Asymmetry for Inclusive Jet Production in p⃗ +p⃗ Collisions at √s=200  GeV. Physical Review Letters, 100 (23). pp. 232003-7. ISSN 0031-9007

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Abstract

We report a new STAR measurement of the longitudinal double-spin asymmetry A_LL for inclusive jet production at midrapidity in polarized p+p collisions at a center-of-mass energy of √s=200  GeV. The data, which cover jet transverse momenta 5<p_T<30  GeV/c, are substantially more precise than previous measurements. They provide significant new constraints on the gluon spin contribution to the nucleon spin through the comparison to predictions derived from one global fit to polarized deep-inelastic scattering measurements.

Item Type: Article
Keywords: longitudinal double-spin asymmetry, polarized protons, nucleon, photoproduction, pair
Date: June 2008
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2008) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 119-0982887-1006
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 10 Jun 2014 12:48
Last Modified: 10 Jun 2014 12:48
URI: http://digre.pmf.unizg.hr/id/eprint/2341

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