Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at s =200 GeV
Funding Sponsor
National Science Foundation
Author's Department
Mechanical Engineering Department
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https://doi.org/10.1103/PhysRevD.103.L091103
Document Type
Research Article
Publication Title
Physical Review D
Publication Date
5-1-2021
doi
10.1103/PhysRevD.103.L091103
Abstract
We report high-precision measurements of the longitudinal double-spin asymmetry, ALL, for midrapidity inclusive jet and dijet production in polarized pp collisions at a center-of-mass energy of s=200 GeV. The new inclusive jet data are sensitive to the gluon helicity distribution, Δg(x,Q2), for gluon momentum fractions in the range from x≃0.05 to x≃0.5, while the new dijet data provide further constraints on the x dependence of Δg(x,Q2). The results are in good agreement with previous measurements at s=200 GeV and with recent theoretical evaluations of prior world data. Our new results have better precision and thus strengthen the evidence that Δg(x,Q2) is positive for x>0.05.
Recommended Citation
APA Citation
Abdallah, M.
Adam, J.
Adamczyk, L.
Adams, J.
...
(2021). Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at s =200 GeV. Physical Review D, 103(9),
10.1103/PhysRevD.103.L091103
https://fount.aucegypt.edu/faculty_journal_articles/2369
MLA Citation
Abdallah, M. S., et al.
"Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at s =200 GeV." Physical Review D, vol. 103,no. 9, 2021,
https://fount.aucegypt.edu/faculty_journal_articles/2369