Nuclear gluons at RHIC in a multiobservable approach
Helenius, I., Lajoie, J., Osborn, J. D., Paakkinen, P., & Paukkunen, H. (2019). Nuclear gluons at RHIC in a multiobservable approach. Physical Review D, 100(1), Article 014004. https://doi.org/10.1103/PhysRevD.100.014004
Julkaistu sarjassa
Physical Review DPäivämäärä
2019Tekijänoikeudet
© The Authors, 2019.
We explore the possibility of measuring nuclear gluon distributions at the Relativistic Heavy-Ion Collider (RHIC) with
√s=200 GeV proton-nucleus collisions. In addition to measurements at central rapidity, we consider also observables at forward rapidity, consistent with proposed upgrades to the experimental capabilities of STAR and sPHENIX. The processes we consider consist of Drell-Yan dilepton, dijet, and direct photon-jet production. The Drell-Yan process is found to be an efficient probe of gluons at small momentum fractions. In order to fully utilize the potential of Drell-Yan measurements we demonstrate how the overall normalization uncertainty present in the experimental data can be fixed using other experimental observables. An asset of the RHIC collider is its flexibility to run with different ion beams, and we outline how this ability could be taken advantage of to measure the A dependence of gluon distributions for which the current constraints are scarce.
Julkaisija
American Physical SocietyISSN Hae Julkaisufoorumista
2470-0010Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/32096342
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I. H. and H. P. acknowledge the support from the Academy of Finland, Project No. 308301. The work of P. P. has been supported by the Magnus Ehrnrooth Foundation. The Finnish IT Center for Science (CSC) is acknowledged for super-computing resources under the Project No. jyy2580. J. O. acknowledges support from the Margaret and Herman Sokol Faculty Awards of University of Michigan and the Office of Nuclear Physics in the Office of Science of the Department of Energy under Grant No. DE-SC0013393. J. L. acknowledges support from the Office of Nuclear Physics in the Office of Science of the Department of Energy under Grants No. DE-FG02-10ER41719 and DE-FG02-92ER40962. ...Lisenssi
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