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Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at √s=510 GeV

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We report measurements of the longitudinal double-spin asymmetry, ALL, for inclusive jet and dijet production in polarized proton-proton collisions at midrapidity and center-of-mass energy √s=510 GeV, using the high luminosity data sample collected by the STAR experiment in 2013. These measurements...

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Main Authors: Abdallah, Mohamed Samy (Author) , Deppner, Ingo Martin (Author) , Herrmann, Norbert (Author) , Söhngen, Yannick (Author) , Weidenkaff, Philipp (Author)
Corporate Author: STAR Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 23 May 2022
In: Physical review
Year: 2022, Volume: 105, Issue: 9, Pages: 1-18
ISSN:2470-0029
DOI:10.1103/PhysRevD.105.092011
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.105.092011
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.105.092011
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Author Notes:STAR Collaboration
Description
Summary:We report measurements of the longitudinal double-spin asymmetry, ALL, for inclusive jet and dijet production in polarized proton-proton collisions at midrapidity and center-of-mass energy √s=510 GeV, using the high luminosity data sample collected by the STAR experiment in 2013. These measurements complement and improve the precision of previous STAR measurements at the same center-of-mass energy that probe the polarized gluon distribution function at partonic momentum fraction 0.015≲x≲0.25. The dijet asymmetries are separated into four jet-pair topologies, which provide further constraints on the x dependence of the polarized gluon distribution function. These measurements are in agreement with previous STAR measurements and with predictions from current next-to-leading-order global analyses. They provide more precise data at low dijet invariant mass that will better constrain the shape of the polarized gluon distribution function of the proton.
Item Description:Im Titel steht der Buchstabe s unter dem Wurzelsymbol
STAR Collaboration: M.S. Abdallah, I.M. Deppner, N. Herrmann, Y. Söhngen, P.C. Weidenkaff [und viele weitere Personen]
Gesehen am 01.09.2022
Physical Description:Online Resource
ISSN:2470-0029
DOI:10.1103/PhysRevD.105.092011

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