Jet Azimuthal Correlations and Parton Saturation in the Color Glass Condensate

Abstract

We consider the influence of parton saturation in the Color Glass Condensate on the back-to-back azimuthal correlations of high $p_T$ hadrons in $pA$ (or $dA$) collisions. When both near--side and away--side hadrons are detected at mid-rapidity at RHIC energy, the effects of parton saturation are constrained to transverse momenta below the saturation scale $p_T\le Q_s$; in this case the back-to-back correlations do not disappear but exhibit broadening. However when near-side and away-side hadrons are separated by several units of rapidity, quantum evolution effects lead to the depletion of back-to-back correlations as a function of rapidity interval between the detected hadrons (at fixed $p_T$). This applies to both $pp$ and $pA$ (or $dA$) collisions; however, due to the initial conditions provided by the Color Glass Condensate, the depletion of the back-to-back correlations is significantly stronger in the $pA$ case. An experimental study of this effect would thus help to clarify the origin of the high $p_T$ hadron suppression at forward rapidities observed recently at RHIC.

17 pages, 13 figures

References in corpus (2)

• From unintegrated gluon distributions to particle production in hadronic collisions at high energies
• From unintegrated gluon distributions to particle production in nucleon-nucleon collisions at RHIC energies

Cited by in corpus (66)

• The Color Glass Condensate
• Parton Ladder Splitting and the Rapidity Dependence of Transverse Momentum Spectra in Deuteron-Gold Collisions at RHIC
• Saturation Physics and Deuteron--Gold Collisions at RHIC
• Gluon saturation and initial conditions for relativistic heavy ion collisions
• 50 Years of Quantum Chromodynamics
• Forward inclusive dijet production and azimuthal correlations in pA collisions
• Azimuthal correlations of forward di-hadrons in d+Au collisions at RHIC in the Color Glass Condensate
• Forward Neutral Pion Production in p+p and d+Au Collisions at sqrt(s_NN)=200 GeV
• Evidence for BFKL and saturation dynamics from di-hadron spectra at the LHC
• Mining for Gluon Saturation at Colliders
• Suppression of back-to-back hadron pairs at forward rapidity in d+Au Collisions at sqrt(s_NN)=200 GeV
• Study of the Fundamental Structure of Matter with an Electron-Ion Collider
• High energy factorization in nucleus-nucleus collisions III. Long range rapidity correlations
• The Ridge from the BFKL evolution and beyond
• Low-pT Collective Flow Induces High-pT Jet Quenching
• Observations on dA scattering at forward rapidities
• Probing Gluon Saturation through Dihadron Correlations at an Electron-Ion Collider
• Gluon saturation and energy dependence of hadron multiplicity in pp and AA collisions at the LHC
• Two-particle correlations in high energy collisions and the gluon four-point function
• The importance of kinematic twists and genuine saturation effects in dijet production at the Electron-Ion Collider
• Particle Correlations in Saturated QCD Matter
• pT-Broadening and production processes versus dipole/quadrupole amplitudes at next-to-leading order
• Gluon splitting in a shockwave
• Polarized 3 parton production in inclusive DIS at small x
• Exploring correlations in the CGC wave function: odd azimuthal anisotropy
• Non-Abelian Bremsstrahlung and Azimuthal Asymmetries in High Energy p+A Reactions
• High energy pA collisions in the Color Glass Condensate approach
• Forward dijets in high-energy collisions: evolution of QCD n-point functions beyond the dipole approximation
• Photon $+$ Hadron Production in High Energy Deuteron (Proton)-Nucleus Collisions
• Dijet azimuthal correlations and conditional yields in $pp$ and $p$+Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV with the ATLAS detector
• Rapidity and centrality dependence of azimuthal correlations in Deuteron-Gold collisions at RHIC
• Azimuthal Angle Correlations for Rapidity Separated Hadron Pairs in d+Au Collisions at sqrt(s_NN) = 200 GeV
• Harmonics of Parton Saturation in Lepton-Jet Correlations at the EIC
• Inclusive prompt photon-jet correlations as a probe of gluon saturation in electron-nucleus scattering at small $x$
• Evidence for Nonlinear Gluon Effects in QCD and their $A$ Dependence at STAR
• Jet-like correlations between Forward- and Mid- rapidity in p+p, d+Au and Au+Au collisions from STAR at 200 GeV
• Two-Gluon Production and Longitudinal Correlations in the Color Glass Condensate
• Resummation in nonlinear equation for high energy factorizable gluon density and its extension to include coherence
• On perturbative limits of quadrupole evolution in QCD at high energy
• Geometrical scaling for energies available at the BNL Relativistic Heavy Ion Collider to those at the CERN Large Hadron Collider
• Saturation physics and angular correlations at RHIC and LHC
• CGC/saturation approach for high energy soft interactions: ${\mathbf{v}}_2$ in proton-proton collisions
• Probing High Parton Densities at Low-$x$ in d+Au Collisions at PHENIX Using the New Forward and Backward Muon Piston Calorimeters
• Nuclear $p_{\perp }$-broadening of an energetic parton pair
• Nuclear $p_{\perp }$-broadening of Drell-Yan and quarkonium production from SPS to LHC
• Mini-jet thermalization and diffusion of transverse momentum correlation in high-energy heavy-ion collisions
• Single and double inclusive particle production in d+Au collisions at RHIC, leading twist and beyond
• Initial-State Bremsstrahlung versus Final-State Hydrodynamic Sources of Azimuthal Harmonics in p+A at RHIC and LHC
• Cronin Effect and High Transver Momentum Suppression in D+Au Collisions
• Successes and failures with hard probes
• Investigating the broadening phenomenon in two-particle correlations induced by gluon saturation
• Highlights from STAR (II) - Hard Probes of the Initial and Final State -
• Distribution of multiple scatterings in proton-nucleus collisions at high energy
• Highlights from PHENIX-I: Initial State and Early Times
• Description of di-hadron saturation signals within a universal nuclear parton distribution function approach
• Single Particle Probes of d+Au Collisions in PHENIX
• Rapidity dependence of azimuthal correlations for p+p and d+Au at $\sqrt{s}=200$GeV
• Azimuthal angle and rapidity dependence of di-hadron correlations in QCD
• Jet-Like Correlations between Forward and Mid-Rapidity
• Are there monojets in high-energy proton-nucleus collisions?
• Cold nuclear matter physics at forward rapidities from d+Au collisions in PHENIX
• Azimuthal correlations of forward dijets in d+Au collisions at RHIC
• Recent results on saturation and CGC
• Rapidity and centrality dependence of azimuthal correlations in high energy d+Au collisions
• Di-${\pi }^0$ correlations in $p+$$p$, $p+$$\mathrm{Al}$ and $p+$$\mathrm{Au}$ collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$ = 200 GeV at STAR
• Small-$x$ and Forward Measurements at STAR