Longitudinal and transverse spin asymmetries for inclusive jet production at mid-rapidity in polarized p+p collisions at √s=200 GeV
Author(s)
Balewski, Jan T.; Betancourt, Michael Joseph; Corliss, Ross Cameron; Hays-Wehle, James Prewitt; Leight, William Axel; Redwine, Robert P.; Seele, J.; van Nieuwenhuizen, Gerrit Jan; Steadman, Stephen G.; Surrow, Bernd; ... Show more Show less![Thumbnail](/bitstream/handle/1721.1/74188/Adamczyk-2012-Longitudinal%20and%20transverse%20spin%20asymmetries%20for%20inclusive%20jet%20production.pdf.jpg?sequence=6&isAllowed=y)
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We report STAR measurements of the longitudinal double-spin asymmetry A[subscript LL], the transverse single-spin asymmetry A[subscript N], and the transverse double-spin asymmetries A[subscript Σ] and [subscript ATT] for inclusive jet production at mid-rapidity in polarized p+p collisions at a center-of-mass energy of √s=200 GeV. The data represent integrated luminosities of 7.6 pb[superscript -1] with longitudinal polarization and 1.8 pb[superscript -1] with transverse polarization, with 50%–55% beam polarization, and were recorded in 2005 and 2006. No evidence is found for the existence of statistically significant jet A[subscript N], A[subscript Σ], or A[subscript TT] at mid-rapidity. Recent model calculations indicate the AN results may provide new limits on the gluon Sivers distribution in the proton. The asymmetry A[subscript LL] significantly improves the knowledge of gluon polarization in the nucleon.
Date issued
2012-08Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Physical Review D
Publisher
American Physical Society
Citation
Adamczyk, L. et al. “Longitudinal and Transverse Spin Asymmetries for Inclusive Jet Production at Mid-rapidity in Polarized P+p Collisions at Sqrt[s]=200 GeV.” Physical Review D 86.3 (2012). © 2012 American Physical Society
Version: Final published version
ISSN
1550-7998
1089-4918