Longitudinal and transverse spin asymmetries for inclusive jet production at mid-rapidity in polarized p+p collisions at √s=200 GeV
Name
Adamczyk-2012-Longitudinal and transverse spin asymmetries for inclusive jet production.pdf
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1.58 MB
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Adobe PDF
Checksum (MD5)
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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
Date Issued
August 2012
Journal
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
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.86.032006
