Nuclear gluons at RHIC in a multi-observable approach
arXiv:1904.09921 · doi:10.1103/PhysRevD.100.014004
Abstract
We explore the possibility of measuring nuclear gluon distributions at the Relativistic Heavy-Ion Collider (RHIC) with 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 dependence of gluon distributions for which the current constraints are scarce.
arXiv comment10 pages, the version to appear in PRD
References in corpus (41)
- PYTHIA 6.4 Physics and Manual
- PYTHIA 6.2 Physics and Manual
- A Brief Introduction to PYTHIA 8.1
- FastJet user manual
- Glauber Modeling in High Energy Nuclear Collisions
- New parton distribution functions from a global analysis of quantum chromodynamics
- nCTEQ15 - Global analysis of nuclear parton distributions with uncertainties in the CTEQ framework
- EPPS16: Nuclear parton distributions with LHC data
- Next-to-leading order calculation of three-jet observables in hadron-hadron collision
- Improved Measurement of the Asymmetry in the Nucleon Sea
- Uncertainties of predictions from parton distribution functions II: the Hessian method
- Global Analysis of Nuclear Parton Distributions
- Cross section of isolated prompt photons in hadron-hadron collisions
- Parton distributions and lattice QCD calculations: a community white paper
- The Structure of the Proton in the LHC Precision Era
- Centrality Dependence of pi^0 and eta Production at Large Transverse Momentum in sqrt(s_NN) = 200 GeV d+Au Collisions
- Progress in the Determination of the Partonic Structure of the Proton
- Gluon Shadowing in Heavy-Flavor Production at the LHC
- PDF reweighting in the Hessian matrix approach
- Global analysis of nuclear parton distribution functions and their uncertainties at next-to-next-to-leading order
- New data strengthen the connection between Short Range Correlations and the EMC effect
- Study of prompt D meson production in pPb collisions at =5 TeV
- First measurement of charm production in fixed-target configuration at the LHC
- Updating and Optimizing Error PDFs in the Hessian Approach
- Centrality-dependent modification of jet-production rates in deuteron-gold collisions at =200 GeV
- Measurement of antiproton production in collisions at GeV
- An Upgrade Proposal from the PHENIX Collaboration
- Agreement of Neutrino Deep Inelastic Scattering Data with Global Fits of Parton Distributions
- Inclusive prompt photon production in nuclear collisions at RHIC and LHC
- Nuclear Structure Functions at a Future Electron-Ion Collider
- Photon - Jet Correlations and Constraints on Fragmentation Functions
- Inclusive pi^0, eta, and direct photon production at high transverse momentum in p+p and d+Au collisions at sqrt(s_NN) = 200 GeV
- Constraining gluon distributions in nuclei using dijets in proton-proton and proton-lead collisions at 5.02 TeV
- Probing gluon and heavy-quark nuclear PDFs with photon + heavy quark production in pA collisions
- MEKS: a program for computation of inclusive jet cross sections at hadron colliders
- Measuring gluon shadowing with prompt photons at RHIC and LHC
- A perturbative QCD study of dijets in p+Pb collisions at the LHC
- Prompt photon production and photon-jet correlations at the LHC
- Status of nuclear PDFs after the first LHC p-Pb run
- Global analysis of nuclear parton distribution functions at leading and next-to-leading order perturbative QCD
- Nuclear PDFs Today