Towards a first estimate of the gluon Sivers function from $A_N$ data in $pp$ collisions at RHIC

Abstract

Within a generalized parton model approach, with inclusion of spin and intrinsic transverse momentum effects, we show how the latest, highly precise, midrapidity data on the transverse single spin asymmetry measured in $pp\to {\pi }^{0}X$ by the PHENIX Collaboration at RHIC [1], can be used to get a first estimate on the still poorly known gluon Sivers distribution. To this end we also adopt the present information on the quark Sivers functions, as extracted from semi-inclusive deeply inelastic scattering data. This analysis updates a previous study by some of us where a first bound on this distribution was obtained [2].

RevTex4, 10 pages, 7 eps figures. V2: discussion on the process dependence of the quark Sivers function, with two new plots (Fig. 4), added in Section II. One reference added. Results unchanged. Matches the published version

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Cited by in corpus (34)

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• Probing the gluon Sivers function in $p^{\uparrow }p\to J/\psi X$ and $p^{\uparrow }p\to DX$
• Unraveling the Gluon Sivers Function in Hadronic Collisions at RHIC
• A Fixed-Target Programme at the LHC: Physics Case and Projected Performances for Heavy-Ion, Hadron, Spin and Astroparticle Studies
• Transverse spin effects in hard semi-inclusive collisions
• Accessing the Gluon Sivers Function at a future Electron-Ion Collider
• Sivers effect in Inelastic $J/\psi$ Photoproduction in $e{p}^{\uparrow }$ Collision in Color Octet Model
• TMDs and SSAs in hadronic interactions
• Where do we stand with a 3-D picture of the proton?
• Gluon Sivers function in a light-cone spectator model
• Sivers Asymmetry in Photoproduction of $J/\psi$ and Jet at the EIC
• Process dependence of the gluon Sivers function in $p^{\uparrow }p\to J/\psi +X$ within a TMD approach in NRQCD
• Transverse Single Spin Asymmetry in $p+p^{\uparrow }\to J/\psi +X$
• Single-spin asymmetry of $J/\psi$ production in $p$$+$$p$, $p$$+$Al, and $p$$+$Au collisions with transversely polarized proton beams at $\sqrt{s_{{}_{NN}}}=200$ GeV
• Transverse Single Spin Asymmetry in $p+p^{\uparrow }\to D+X$
• Transverse single-spin asymmetries of midrapidity ${\pi }^0$ and $\eta$ mesons in polarized $p$$+$$p$ collisions at $\sqrt{s}=200$ GeV
• QCD evolution of the gluon Sivers function in heavy flavor dijet production at the Electron-Ion Collider
• Transverse single-spin asymmetry in the low-virtuality leptoproduction of open charm as a probe of the gluon Sivers function
• Reweighting the Sivers function with jet data from STAR
• Transverse single-spin asymmetries in $\ell p^{\uparrow }\to hX$ within a TMD approach: Role of quasireal photon exchange
• Probing the Gluon Sivers Function through direct photon production at RHIC
• Estimates for the single-spin asymmetries in $p^{\uparrow }p\to J/\psi X$ process at PHENIX RHIC and SPD NICA
• Investigating the Transverse Single Spin Asymmetry in the Inelastic $J/\Psi$ photoproduction in $p^{\uparrow }p$ and $p^{\uparrow }A$ collisions
• Heavy Flavour production as probe of Gluon Sivers Function
• On transverse single-spin asymmetries in $D$-meson production at the SPD NICA experiment
• Probing the Sivers asymmetries through $J/\psi$ photoproduction in ${\mathrm{p}}^{\uparrow }\mathrm{p}$ collision with forward proton tagging
• Azimuthal asymmetries in $D$-meson and jet production at the EIC
• Investigating the transverse momentum dependent gluon Sivers function in quarkonium production at $pp$ colliders
• Probing gluon TMDs with reconstructed and tagged heavy flavor hadron pairs at EIC
• Probing Gluons at the Spin Physics Detector
• Transverse Single Spin Asymmetry in $J/\psi$ Production
• Gluon Sivers function and transverse single spin asymmetries in $e+p^{\uparrow }\to \gamma +X$
• Low-virtuality leptoproduction of open-charm as a probe of the gluon Sivers function
• Resummation of the Sivers asymmetry in heavy flavor dijet production at the Electron-Ion Collider