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Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at s =510 GeV
- Source :
- Physical Review D; vol 105, iss 9, 092011; 2470-0010
- Publication Year :
- 2022
-
Abstract
- 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.
Details
- Database :
- OAIster
- Journal :
- Physical Review D; vol 105, iss 9, 092011; 2470-0010
- Notes :
- application/pdf, Physical Review D vol 105, iss 9, 092011 2470-0010
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1341876865
- Document Type :
- Electronic Resource