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Precision measurement of the longitudinal double-spin asymmetry for inclusive jet production in polarized proton collisions at √s = 200 GeV

Journal Article · · Physical Review Letters
 [1]
  1. AGH Univ. of Science and Technology, Cracow (Poland). et al.
We report a new measurement of the midrapidity inclusive jet longitudinal double-spin asymmetry, ALL, in polarized pp collisions at center-of-mass energy √s = 200 GeV. The STAR data place stringent constraints on polarized parton distribution functions extracted at next-to-leading order from global analyses of inclusive deep-inelastic scattering (DIS), semi-inclusive DIS, and RHIC pp data. Lastly, the measured asymmetries provide evidence at the 3σ level for positive gluon polarization in the Bjorken-x region x > 0.05 .
Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI ID:
1236553
Alternate ID(s):
OSTI ID: 1213110
Report Number(s):
BNL--108526-2015-JA; KB0202012
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 9 Vol. 115; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (13)

The spin structure of the nucleon journal January 1994
The spin structure of the nucleon journal June 2019
Analytical approaches to the determination of spin-dependent parton distribution functions at NNLO approximation journal May 2018
Longitudinal double-spin asymmetry for inclusive jet and dijet production in p p collisions at s = 510     GeV journal September 2019
Inclusive cross section and double-helicity asymmetry for π 0 production at midrapidity in p + p collisions at s = 510     GeV journal January 2016
Iterative Monte Carlo analysis of spin-dependent parton distributions journal April 2016
Measurements of double-helicity asymmetries in inclusive J / ψ production in longitudinally polarized p + p collisions at s = 510 GeV journal December 2016
Measurement of the cross section and longitudinal double-spin asymmetry for dijet production in polarized p p collisions at s = 200     GeV journal April 2017
Cross section and longitudinal single-spin asymmetry A L for forward W ± → μ ± ν production in polarized p + p collisions at s = 510     GeV journal August 2018
Pre-Town Meeting on spin physics at an Electron-Ion Collider journal April 2017
The Spin Structure of the Nucleon: Proceeding of International School of Nucleon Structure: 1st Course conference April 2017
Pre-Town Meeting on spin physics at an Electron-Ion Collider text January 2017
Analytical approaches to the determination of spin-dependent parton distribution functions at NNLO approximation text January 2018


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