Longitudinal double-spin asymmetries for dijet production at intermediate pseudorapidity in polarized pp collisions at √s=200 GeV

• Verfasst von: Adam, Jaroslav [VerfasserIn]
• Verfasst von: Deppner, Ingo Martin [VerfasserIn]
• Verfasst von: Herrmann, Norbert [VerfasserIn]
• Titel: Longitudinal double-spin asymmetries for dijet production at intermediate pseudorapidity in polarized pp collisions at √s=200 GeV
• Körperschaft: STAR Collaboration [VerfasserIn]
• Verf.angabe: J. Adam, I.M. Deppner, N. Herrmann [und 346 weitere] (STAR Collaboration)
• E-Jahr: 2018
• Jahr: 17 August 2018
• Umfang: 14 S.
• Fussnoten: Gesehen am 05.07.2019
• Titel Quelle: Enthalten in: Physical review
• Ort Quelle: Woodbury, NY : Inst., 2016
• Jahr Quelle: 2018
• Band/Heft Quelle: 98(2018,3) Artikel-Nummer 032011, 14 Seiten
• ISSN Quelle: 2470-0029
• DOI: doi:10.1103/PhysRevD.98.032011
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1668665522

Abstract

We present the first measurements of the longitudinal double-spin asymmetry ALL for dijets with at least one jet reconstructed within the pseudorapidity range 0.8<η<1.8. The dijets were measured in polarized pp collisions at a center-of-mass energy √s=200 GeV. Values for ALL are determined for several distinct event topologies, defined by the jet pseudorapidities, and span a range of parton momentum fraction x down to x∼0.01. The measured asymmetries are found to be consistent with the predictions of global analyses that incorporate the results of previous RHIC measurements. They will provide new constraints on Δg(x) in this poorly constrained region when included in future global analyses.