On the Dihadron Angular Correlations in Forward $pA$ collisions

Abstract

Dihadron angular correlations in forward $pA$ collisions have been considered as one of the most sensitive observables to the gluon saturation effects. In general, both parton shower effects and saturation effects are responsible for the back-to-back dihadron angular de-correlations. With the recent progress in the saturation formalism, we can incorporate the parton shower effect by adding the corresponding Sudakov factor in the saturation framework. In this paper, we carry out the first detailed numerical study in this regard, and find a very good agreement with previous RHIC $pp$ and $dAu$ data. This study can help us to establish a baseline in $pp$ collisions which contains little saturation effects, and further make predictions for dihadron angular correlations in $pAu$ collisions, which will allow to search for the signal of parton saturation.

7pages, 3 figures

References in corpus (15)

• The Color Glass Condensate
• Universality of Unintegrated Gluon Distributions at small x
• Forward inclusive dijet production and azimuthal correlations in pA collisions
• k_T factorization is violated in production of high-transverse-momentum particles in hadron-hadron collisions
• Azimuthal correlations of forward di-hadrons in d+Au collisions at RHIC in the Color Glass Condensate
• kt-factorization for Hard Processes in Nuclei
• Single Inclusive Hadron Production at RHIC and the LHC from the Color Glass Condensate
• Forward dihadron correlations in deuteron-gold collisions with a Gaussian approximation of JIMWLK
• Sudakov Resummation in Small-x Saturation Formalism
• Probing Transverse Momentum Broadening via Dihadron and Hadron-jet Angular Correlations in Relativistic Heavy-ion Collisions
• Soft Gluon Resummations in Dijet Azimuthal Angular Correlations at the Collider
• Probing Transverse Momentum Broadening in Heavy Ion Collisions
• Medium Induced Transverse Momentum Broadening in Hard Processes
• Estimating nonlinear effects in forward dijet production in ultra-peripheral heavy ion collisions at the LHC
• Saturation in inclusive production beyond leading logarithm accuracy

Cited by in corpus (26)

• The Large Hadron-Electron Collider at the HL-LHC
• Mining for Gluon Saturation at Colliders
• Back-to-back inclusive dijets in DIS at small $x$: Sudakov suppression and gluon saturation at NLO
• Forward di-hadron back-to-back correlations in $\mathbf{pA}$ collisions from rcBK evolution
• QCD evolution based evidence for the onset of gluon saturation in exclusive photo-production of vector mesons
• Broadening and saturation effects in dijet azimuthal correlations in p-p and p-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathbf{NN}}}=$ 5.02 TeV
• One-Loop Corrections to Dihadron Production in DIS at Small $x$
• Single Inclusive Hadron Production in DIS at Small $x$: Next to Leading Order Corrections
• Comparison of improved TMD and CGC frameworks in forward quark dijet production
• Isolated photon-hadron production in high energy $pp$ and $pA$ collisions at RHIC and LHC
• Inclusive prompt photon-jet correlations as a probe of gluon saturation in electron-nucleus scattering at small $x$
• Harmonics of Parton Saturation in Lepton-Jet Correlations at the EIC
• Evidence for Nonlinear Gluon Effects in QCD and their $A$ Dependence at STAR
• Dihadron Production in DIS at Small $x$ at Next to Leading Order: Transverse Photons
• Sudakov effects in central-forward dijet production in high energy factorization
• Isolated photon production and pion-photon correlations in high-energy $pp$ and $pA$ collisions
• Probing parton saturation with forward $Z^0$-boson production at small transverse momentum in p+p and p+A collisions
• Energy evolution of T-odd gluon TMDs at small $x$
• The suppressions of dijet azimuthal correlations in the future EIC
• Transverse Momentum Dependent Gluon Distribution within High Energy Factorization at Next-to-Leading Order
• Signature of gluon saturation in forward di-hadron correlations at the Large Hadron Collider
• Exploring non-perturbative Sudakov factor via $Z^0$-boson production in $pp$ collisions
• Predictions for photon-jet correlations at forward rapidities in heavy-ion collisions
• Photoproduction of three jets in the CGC: gluon TMDs and dilute limit
• Coherent energy loss effects in dihadron azimuthal angular correlations in Deep Inelastic Scattering at small $x$
• Dijet photoproduction at low $x$ at next-to-leading order and its back-to-back limit